125551404 has 48 divisors (see below), whose sum is σ = 355098240. Its totient is φ = 38045520.

The previous prime is 125551403. The next prime is 125551417. The reversal of 125551404 is 404155521.

125551404 is a `hidden beast` number, since 1 + 255 + 5 + 1 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (125551403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51654 + ... + 54029.

It is an arithmetic number, because the mean of its divisors is an integer number (7397880).

Almost surely, 2^125551404 is an apocalyptic number.

It is an amenable number.

125551404 is an abundant number, since it is smaller than the sum of its proper divisors (229546836).

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

125551404 is a wasteful number, since it uses less digits than its factorization.

125551404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105707 (or 105699 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 125551404 is about 11204.9722891224. The cubic root of 125551404 is about 500.7341269211.

The spelling of 125551404 in words is "one hundred twenty-five million, five hundred fifty-one thousand, four hundred four".