652157772 has 48 divisors (see below), whose sum is σ = 1757038080. Its totient is φ = 184407552.

The previous prime is 652157761. The next prime is 652157773. The reversal of 652157772 is 277751256.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (652157773) 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, 31872 + ... + 48167.

It is an arithmetic number, because the mean of its divisors is an integer number (36604960).

Almost surely, 2^652157772 is an apocalyptic number.

It is an amenable number.

652157772 is an abundant number, since it is smaller than the sum of its proper divisors (1104880308).

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

652157772 is a wasteful number, since it uses less digits than its factorization.

652157772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80150 (or 80148 counting only the distinct ones).

The product of its digits is 205800, while the sum is 42.

The square root of 652157772 is about 25537.3798969276. The cubic root of 652157772 is about 867.1965832841.

The spelling of 652157772 in words is "six hundred fifty-two million, one hundred fifty-seven thousand, seven hundred seventy-two".