55534400075 has 48 divisors (see below), whose sum is σ = 86043969024. Its totient is φ = 34542547200.

The previous prime is 55534400071. The next prime is 55534400093. The reversal of 55534400075 is 57000443555.

It is a happy number.

It is not a de Polignac number, because 55534400075 - 2² = 55534400071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55534400071) 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, 848162 + ... + 911288.

It is an arithmetic number, because the mean of its divisors is an integer number (1792582688).

Almost surely, 2^55534400075 is an apocalyptic number.

55534400075 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55534400075 is a deficient number, since it is larger than the sum of its proper divisors (30509568949).

55534400075 is a wasteful number, since it uses less digits than its factorization.

55534400075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63612 (or 63607 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 38.

The spelling of 55534400075 in words is "fifty-five billion, five hundred thirty-four million, four hundred thousand, seventy-five".