125502404 has 6 divisors (see below), whose sum is σ = 219629214. Its totient is φ = 62751200.

The previous prime is 125502397. The next prime is 125502413. The reversal of 125502404 is 404205521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 56280004 = 8320^2 + 7502^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125502404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15687797 + ... + 15687804.

It is an arithmetic number, because the mean of its divisors is an integer number (36604869).

Almost surely, 2^125502404 is an apocalyptic number.

It is an amenable number.

125502404 is a deficient number, since it is larger than the sum of its proper divisors (94126810).

125502404 is a wasteful number, since it uses less digits than its factorization.

125502404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31375605 (or 31375603 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 125502404 is about 11202.7855464612. The cubic root of 125502404 is about 500.6689765416.

Adding to 125502404 its reverse (404205521), we get a palindrome (529707925).

The spelling of 125502404 in words is "one hundred twenty-five million, five hundred two thousand, four hundred four".