55651425 has 24 divisors (see below), whose sum is σ = 92348256. Its totient is φ = 29571840.

The previous prime is 55651423. The next prime is 55651429. The reversal of 55651425 is 52415655.

It is not a de Polignac number, because 55651425 - 2¹ = 55651423 is a prime.

It is a super-2 number, since 2×55651425² = 6194162209061250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55651423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21817 + ... + 24233.

It is an arithmetic number, because the mean of its divisors is an integer number (3847844).

Almost surely, 2^55651425 is an apocalyptic number.

It is an amenable number.

55651425 is a deficient number, since it is larger than the sum of its proper divisors (36696831).

55651425 is a wasteful number, since it uses less digits than its factorization.

55651425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2732 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 55651425 is about 7459.9882707683. The cubic root of 55651425 is about 381.7907742902.

The spelling of 55651425 in words is "fifty-five million, six hundred fifty-one thousand, four hundred twenty-five".