156540625 has 12 divisors (see below), whose sum is σ = 195667164. Its totient is φ = 125230000.

The previous prime is 156540619. The next prime is 156540649. The reversal of 156540625 is 526045651.

156540625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 153660816 + 2879809 = 12396^2 + 1697^2 .

It is not a de Polignac number, because 156540625 - 2³ = 156540617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21922 + ... + 28171.

It is an arithmetic number, because the mean of its divisors is an integer number (16305597).

Almost surely, 2^156540625 is an apocalyptic number.

It is an amenable number.

156540625 is a deficient number, since it is larger than the sum of its proper divisors (39126539).

156540625 is an frugal number, since it uses more digits than its factorization.

156540625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50118 (or 50098 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 156540625 is about 12511.6195993964. The cubic root of 156540625 is about 538.9424030574.

The spelling of 156540625 in words is "one hundred fifty-six million, five hundred forty thousand, six hundred twenty-five".