55042875 has 64 divisors (see below), whose sum is σ = 104232960. Its totient is φ = 28648800.

The previous prime is 55042873. The next prime is 55042877. The reversal of 55042875 is 57824055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55042873) and next prime (55042877).

It is not a de Polignac number, because 55042875 - 2¹ = 55042873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55042873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158452 + ... + 158798.

It is an arithmetic number, because the mean of its divisors is an integer number (1628640).

Almost surely, 2^55042875 is an apocalyptic number.

55042875 is a deficient number, since it is larger than the sum of its proper divisors (49190085).

55042875 is a wasteful number, since it uses less digits than its factorization.

55042875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 55042875 is about 7419.0885558807. The cubic root of 55042875 is about 380.3940395527.

The spelling of 55042875 in words is "fifty-five million, forty-two thousand, eight hundred seventy-five".