55297025 has 24 divisors (see below), whose sum is σ = 80899584. Its totient is φ = 36691200.

The previous prime is 55297019. The next prime is 55297027. The reversal of 55297025 is 52079255.

It is not a de Polignac number, because 55297025 - 2⁶ = 55296961 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (55297027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (3370816).

Almost surely, 2^55297025 is an apocalyptic number.

It is an amenable number.

55297025 is a deficient number, since it is larger than the sum of its proper divisors (25602559).

55297025 is a wasteful number, since it uses less digits than its factorization.

55297025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10241 (or 10236 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55297025 is about 7436.1969446754. The cubic root of 55297025 is about 380.9786064597.

The spelling of 55297025 in words is "fifty-five million, two hundred ninety-seven thousand, twenty-five".