55951875 has 120 divisors (see below), whose sum is σ = 121836000. Its totient is φ = 24696000.

The previous prime is 55951873. The next prime is 55951891. The reversal of 55951875 is 57815955.

It is not a de Polignac number, because 55951875 - 2¹ = 55951873 is a prime.

It is a super-2 number, since 2×55951875² = 6261224632031250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55951875.

It is not an unprimeable number, because it can be changed into a prime (55951871) 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 119 ways as a sum of consecutive naturals, for example, 1929361 + ... + 1929389.

It is an arithmetic number, because the mean of its divisors is an integer number (1015300).

Almost surely, 2^55951875 is an apocalyptic number.

55951875 is an abundant number, since it is smaller than the sum of its proper divisors (65884125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55951875 is an equidigital number, since it uses as much as digits as its factorization.

55951875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 44 counting only the distinct ones).

The product of its digits is 315000, while the sum is 45.

The square root of 55951875 is about 7480.0985956069. The cubic root of 55951875 is about 382.4766101294.

The spelling of 55951875 in words is "fifty-five million, nine hundred fifty-one thousand, eight hundred seventy-five".