55575477000 has 160 divisors (see below), whose sum is σ = 194267450520. Its totient is φ = 14820105600.

The previous prime is 55575476959. The next prime is 55575477043. The reversal of 55575477000 is 77457555.

It is a happy number.

55575477000 is a `hidden beast` number, since 5 + 5 + 575 + 4 + 7 + 70 + 0 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24857306244 + 30718170756 = 157662^2 + 175266^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 262059 + ... + 424058.

Almost surely, 2^55575477000 is an apocalyptic number.

55575477000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55575477000 is an abundant number, since it is smaller than the sum of its proper divisors (138691973520).

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

55575477000 is a wasteful number, since it uses less digits than its factorization.

55575477000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686150 (or 686127 counting only the distinct ones).

The product of its (nonzero) digits is 857500, while the sum is 45.

The spelling of 55575477000 in words is "fifty-five billion, five hundred seventy-five million, four hundred seventy-seven thousand".