55975964 has 24 divisors (see below), whose sum is σ = 107122176. Its totient is φ = 25382000.

The previous prime is 55975961. The next prime is 55975967. The reversal of 55975964 is 46957955.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55975961) and next prime (55975967).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55975961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20309 + ... + 22899.

It is an arithmetic number, because the mean of its divisors is an integer number (4463424).

Almost surely, 2^55975964 is an apocalyptic number.

It is an amenable number.

55975964 is a deficient number, since it is larger than the sum of its proper divisors (51146212).

55975964 is a wasteful number, since it uses less digits than its factorization.

55975964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3095 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 50.

The square root of 55975964 is about 7481.7086283816. The cubic root of 55975964 is about 382.5314915619.

Subtracting from 55975964 its reverse (46957955), we obtain a square (9018009 = 3003²).

The spelling of 55975964 in words is "fifty-five million, nine hundred seventy-five thousand, nine hundred sixty-four".