125520151250 has 120 divisors (see below), whose sum is σ = 267422831676. Its totient is φ = 43904592000.

The previous prime is 125520151249. The next prime is 125520151261. The reversal of 125520151250 is 52151025521.

It can be written as a sum of positive squares in 10 ways, for example, as 2728077361 + 122792073889 = 52231^2 + 350417^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5855552 + ... + 5876948.

Almost surely, 2^125520151250 is an apocalyptic number.

125520151250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125520151250 is an abundant number, since it is smaller than the sum of its proper divisors (141902680426).

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

125520151250 is a wasteful number, since it uses less digits than its factorization.

125520151250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21470 (or 21436 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

Adding to 125520151250 its reverse (52151025521), we get a palindrome (177671176771).

The spelling of 125520151250 in words is "one hundred twenty-five billion, five hundred twenty million, one hundred fifty-one thousand, two hundred fifty".