52155040 has 48 divisors (see below), whose sum is σ = 140821632. Its totient is φ = 17881344.

The previous prime is 52155023. The next prime is 52155041. The reversal of 52155040 is 4055125.

It is not an unprimeable number, because it can be changed into a prime (52155041) 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, 22164 + ... + 24403.

It is an arithmetic number, because the mean of its divisors is an integer number (2933784).

Almost surely, 2^52155040 is an apocalyptic number.

It is an amenable number.

52155040 is an abundant number, since it is smaller than the sum of its proper divisors (88666592).

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

52155040 is a wasteful number, since it uses less digits than its factorization.

52155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46589 (or 46581 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 52155040 is about 7221.8446397025. The cubic root of 52155040 is about 373.6217018055.

The spelling of 52155040 in words is "fifty-two million, one hundred fifty-five thousand, forty".