155207552125 has 8 divisors (see below), whose sum is σ = 193699025208. Its totient is φ = 124166041600.

The previous prime is 155207552107. The next prime is 155207552141. The reversal of 155207552125 is 521255702551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1429066809 + 153778485316 = 37803^2 + 392146^2 .

It is not a de Polignac number, because 155207552125 - 2⁹ = 155207551613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620830084 + ... + 620830333.

It is an arithmetic number, because the mean of its divisors is an integer number (24212378151).

Almost surely, 2^155207552125 is an apocalyptic number.

It is an amenable number.

155207552125 is a deficient number, since it is larger than the sum of its proper divisors (38491473083).

155207552125 is an equidigital number, since it uses as much as digits as its factorization.

155207552125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241660432 (or 1241660422 counting only the distinct ones).

The product of its (nonzero) digits is 175000, while the sum is 40.

The spelling of 155207552125 in words is "one hundred fifty-five billion, two hundred seven million, five hundred fifty-two thousand, one hundred twenty-five".