27450725 has 12 divisors (see below), whose sum is σ = 35831040. Its totient is φ = 20804400.

The previous prime is 27450721. The next prime is 27450737. The reversal of 27450725 is 52705472.

It is not a de Polignac number, because 27450725 - 2² = 27450721 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 27450691 and 27450700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27450721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28421 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (2985920).

Almost surely, 2^27450725 is an apocalyptic number.

27450725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27450725 is a deficient number, since it is larger than the sum of its proper divisors (8380315).

27450725 is a wasteful number, since it uses less digits than its factorization.

27450725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57820 (or 57815 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 27450725 is about 5239.3439474804. The cubic root of 27450725 is about 301.6601479349.

The spelling of 27450725 in words is "twenty-seven million, four hundred fifty thousand, seven hundred twenty-five".