2551925 has 6 divisors (see below), whose sum is σ = 3164418. Its totient is φ = 2041520.

The previous prime is 2551903. The next prime is 2551933. The reversal of 2551925 is 5291552.

It can be written as a sum of positive squares in 3 ways, for example, as 498436 + 2053489 = 706^2 + 1433^2 .

It is not a de Polignac number, because 2551925 - 2¹⁴ = 2535541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51014 + ... + 51063.

It is an arithmetic number, because the mean of its divisors is an integer number (527403).

2^2551925 is an apocalyptic number.

2551925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551925 is a deficient number, since it is larger than the sum of its proper divisors (612493).

2551925 is a wasteful number, since it uses less digits than its factorization.

2551925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102087 (or 102082 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The square root of 2551925 is about 1597.4745694376. The cubic root of 2551925 is about 136.6540903227.

The spelling of 2551925 in words is "two million, five hundred fifty-one thousand, nine hundred twenty-five".