55515533000 has 32 divisors (see below), whose sum is σ = 129906349560. Its totient is φ = 22206212800.

The previous prime is 55515532993. The next prime is 55515533009. The reversal of 55515533000 is 33551555.

It can be written as a sum of positive squares in 4 ways, for example, as 25219345636 + 30296187364 = 158806^2 + 174058^2 .

It is not an unprimeable number, because it can be changed into a prime (55515533009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27756767 + ... + 27758766.

Almost surely, 2^55515533000 is an apocalyptic number.

55515533000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55515533000 is an abundant number, since it is smaller than the sum of its proper divisors (74390816560).

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

55515533000 is a wasteful number, since it uses less digits than its factorization.

55515533000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55515554 (or 55515540 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 32.

The spelling of 55515533000 in words is "fifty-five billion, five hundred fifteen million, five hundred thirty-three thousand".