2925 has 18 divisors (see below), whose sum is σ = 5642. Its totient is φ = 1440.

The previous prime is 2917. The next prime is 2927. The reversal of 2925 is 5292.

Multipling 2925 by its sum of digits (18), we get a triangular number (52650 = T_{324}).

2925 = T_{1} + T_{2} + ... +
T_{25}.

2925 = 5^{3} + 6^{3} + ... + 10^{3}.

2925 is nontrivially palindromic in base 2 and base 8.

2925 is a nontrivial binomial coefficient, being equal to C(27, 3).

It can be written as a sum of positive squares in 3 ways, for example, as 9 + 2916 = 3^2 + 54^2 .

It is not a de Polignac number, because 2925 - 2^{3} = 2917 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

2925 is a nontrivial repdigit in base 8.

It is a plaindrome in base 7 and base 8.

It is a nialpdrome in base 5, base 8 and base 15.

It is a zygodrome in base 8.

It is a junction number, because it is equal to *n*+sod(*n*) for *n* = 2898 and 2907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2927) by changing a digit.

It is the 25-th tetrahedral number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 219 + ... + 231.

It is the magic constant of a 18 × 18 magic square.

2925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2925 is a deficient number, since it is larger than the sum of its proper divisors (2717).

2925 is a wasteful number, since it uses less digits than its factorization.

2925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29 (or 21 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 2925 is about 54.0832691320. The cubic root of 2925 is about 14.3012925299.

The spelling of 2925 in words is "two thousand, nine hundred twenty-five".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.039 sec. • engine limits •