55392725 has 12 divisors (see below), whose sum is σ = 68790240. Its totient is φ = 44247600.

The previous prime is 55392707. The next prime is 55392761. The reversal of 55392725 is 52729355.

It is not a de Polignac number, because 55392725 - 2¹⁶ = 55327189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21770 + ... + 24180.

It is an arithmetic number, because the mean of its divisors is an integer number (5732520).

Almost surely, 2^55392725 is an apocalyptic number.

It is an amenable number.

55392725 is a deficient number, since it is larger than the sum of its proper divisors (13397515).

55392725 is a wasteful number, since it uses less digits than its factorization.

55392725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340 (or 3335 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 55392725 is about 7442.6289038216. The cubic root of 55392725 is about 381.1982604696.

The spelling of 55392725 in words is "fifty-five million, three hundred ninety-two thousand, seven hundred twenty-five".