52890973540 has 24 divisors (see below), whose sum is σ = 112891883832. Its totient is φ = 20809562880.

The previous prime is 52890973439. The next prime is 52890973543. The reversal of 52890973540 is 4537909825.

It can be written as a sum of positive squares in 4 ways, for example, as 519566436 + 52371407104 = 22794^2 + 228848^2 .

It is not an unprimeable number, because it can be changed into a prime (52890973543) 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, 21675409 + ... + 21677848.

It is an arithmetic number, because the mean of its divisors is an integer number (4703828493).

Almost surely, 2^52890973540 is an apocalyptic number.

It is an amenable number.

52890973540 is an abundant number, since it is smaller than the sum of its proper divisors (60000910292).

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

52890973540 is a wasteful number, since it uses less digits than its factorization.

52890973540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43353327 (or 43353325 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 52890973540 in words is "fifty-two billion, eight hundred ninety million, nine hundred seventy-three thousand, five hundred forty".