653156057 has 6 divisors (see below), whose sum is σ = 656817534. Its totient is φ = 649514880.

The previous prime is 653156017. The next prime is 653156059. The reversal of 653156057 is 750651356.

It can be written as a sum of positive squares in 3 ways, for example, as 130393561 + 522762496 = 11419^2 + 22864^2 .

It is not a de Polignac number, because 653156057 - 2¹⁴ = 653139673 is a prime.

It is a super-2 number, since 2×653156057² = 853225669591574498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653156057.

It is not an unprimeable number, because it can be changed into a prime (653156059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22793 + ... + 42729.

It is an arithmetic number, because the mean of its divisors is an integer number (109469589).

Almost surely, 2^653156057 is an apocalyptic number.

It is an amenable number.

653156057 is a deficient number, since it is larger than the sum of its proper divisors (3661477).

653156057 is an equidigital number, since it uses as much as digits as its factorization.

653156057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20299 (or 20118 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 653156057 is about 25556.9179871126. The cubic root of 653156057 is about 867.6388423140.

The spelling of 653156057 in words is "six hundred fifty-three million, one hundred fifty-six thousand, fifty-seven".