55949975 has 24 divisors (see below), whose sum is σ = 75048768. Its totient is φ = 41216000.

The previous prime is 55949963. The next prime is 55949987. The reversal of 55949975 is 57994955.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55949963) and next prime (55949987).

It is not a de Polignac number, because 55949975 - 2⁶ = 55949911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18575 + ... + 21375.

It is an arithmetic number, because the mean of its divisors is an integer number (3127032).

Almost surely, 2^55949975 is an apocalyptic number.

55949975 is a deficient number, since it is larger than the sum of its proper divisors (19098793).

55949975 is a wasteful number, since it uses less digits than its factorization.

55949975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2870 counting only the distinct ones).

The product of its digits is 2551500, while the sum is 53.

The square root of 55949975 is about 7479.9715908551. The cubic root of 55949975 is about 382.4722807315.

The spelling of 55949975 in words is "fifty-five million, nine hundred forty-nine thousand, nine hundred seventy-five".