55075851 has 48 divisors (see below), whose sum is σ = 87609600. Its totient is φ = 33224256.

The previous prime is 55075849. The next prime is 55075859. The reversal of 55075851 is 15857055.

55075851 is a `hidden beast` number, since 550 + 7 + 58 + 51 = 666.

It is not a de Polignac number, because 55075851 - 2¹ = 55075849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55075859) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534666 + ... + 534768.

It is an arithmetic number, because the mean of its divisors is an integer number (1825200).

Almost surely, 2^55075851 is an apocalyptic number.

55075851 is a deficient number, since it is larger than the sum of its proper divisors (32533749).

55075851 is a wasteful number, since it uses less digits than its factorization.

55075851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 55075851 is about 7421.3105985399. The cubic root of 55075851 is about 380.4699886481.

Subtracting from 55075851 its reverse (15857055), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 55075851 in words is "fifty-five million, seventy-five thousand, eight hundred fifty-one".