55533434540 has 48 divisors (see below), whose sum is σ = 125171790912. Its totient is φ = 20620302336.

The previous prime is 55533434521. The next prime is 55533434573. The reversal of 55533434540 is 4543433555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093904 + ... + 1143543.

It is an arithmetic number, because the mean of its divisors is an integer number (2607745644).

Almost surely, 2^55533434540 is an apocalyptic number.

It is an amenable number.

55533434540 is an abundant number, since it is smaller than the sum of its proper divisors (69638356372).

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

55533434540 is a wasteful number, since it uses less digits than its factorization.

55533434540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237546 (or 2237544 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 41.

The spelling of 55533434540 in words is "fifty-five billion, five hundred thirty-three million, four hundred thirty-four thousand, five hundred forty".