2157560652 has 48 divisors (see below), whose sum is σ = 5426910720. Its totient is φ = 663210048.

The previous prime is 2157560651. The next prime is 2157560653. The reversal of 2157560652 is 2560657512.

It is an interprime number because it is at equal distance from previous prime (2157560651) and next prime (2157560653).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2157560652.

It is not an unprimeable number, because it can be changed into a prime (2157560651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165799 + ... + 178337.

It is an arithmetic number, because the mean of its divisors is an integer number (113060640).

Almost surely, 2^2157560652 is an apocalyptic number.

It is an amenable number.

2157560652 is an abundant number, since it is smaller than the sum of its proper divisors (3269350068).

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

2157560652 is a wasteful number, since it uses less digits than its factorization.

2157560652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662 (or 13660 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 2157560652 is about 46449.5495349524. The cubic root of 2157560652 is about 1292.1740181342.

The spelling of 2157560652 in words is "two billion, one hundred fifty-seven million, five hundred sixty thousand, six hundred fifty-two".