55097925 has 24 divisors (see below), whose sum is σ = 91467360. Its totient is φ = 29265600.

The previous prime is 55097923. The next prime is 55097947. The reversal of 55097925 is 52979055.

It is not a de Polignac number, because 55097925 - 2¹ = 55097923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55097923) 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, 18810 + ... + 21540.

It is an arithmetic number, because the mean of its divisors is an integer number (3811140).

Almost surely, 2^55097925 is an apocalyptic number.

It is an amenable number.

55097925 is a deficient number, since it is larger than the sum of its proper divisors (36369435).

55097925 is a wasteful number, since it uses less digits than its factorization.

55097925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 42.

The square root of 55097925 is about 7422.7976531763. The cubic root of 55097925 is about 380.5208117258.

The spelling of 55097925 in words is "fifty-five million, ninety-seven thousand, nine hundred twenty-five".