125502342553 has 24 divisors (see below), whose sum is σ = 150738132480. Its totient is φ = 104078338560.

The previous prime is 125502342521. The next prime is 125502342571. The reversal of 125502342553 is 355243205521.

It is not a de Polignac number, because 125502342553 - 2⁵ = 125502342521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125502342353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9035668 + ... + 9049546.

It is an arithmetic number, because the mean of its divisors is an integer number (6280755520).

Almost surely, 2^125502342553 is an apocalyptic number.

It is an amenable number.

125502342553 is a deficient number, since it is larger than the sum of its proper divisors (25235789927).

125502342553 is a wasteful number, since it uses less digits than its factorization.

125502342553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19877 (or 19870 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 125502342553 in words is "one hundred twenty-five billion, five hundred two million, three hundred forty-two thousand, five hundred fifty-three".