55697025 has 24 divisors (see below), whose sum is σ = 94579264. Its totient is φ = 28900800.

The previous prime is 55696973. The next prime is 55697041. The reversal of 55697025 is 52079655.

55697025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55697025 - 2⁷ = 55696897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7261 + ... + 12810.

Almost surely, 2^55697025 is an apocalyptic number.

It is an amenable number.

55697025 is a deficient number, since it is larger than the sum of its proper divisors (38882239).

55697025 is a wasteful number, since it uses less digits than its factorization.

55697025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20121 (or 20116 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 55697025 is about 7463.0439500247. The cubic root of 55697025 is about 381.8950238303.

The spelling of 55697025 in words is "fifty-five million, six hundred ninety-seven thousand, twenty-five".