125553040 has 20 divisors (see below), whose sum is σ = 291911004. Its totient is φ = 50221184.

The previous prime is 125553013. The next prime is 125553049. The reversal of 125553040 is 40355521.

It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 58247424 = 8204^2 + 7632^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 125552996 and 125553014.

It is not an unprimeable number, because it can be changed into a prime (125553049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784627 + ... + 784786.

Almost surely, 2^125553040 is an apocalyptic number.

125553040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125553040 is an abundant number, since it is smaller than the sum of its proper divisors (166357964).

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

125553040 is a wasteful number, since it uses less digits than its factorization.

125553040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569426 (or 1569420 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 125553040 is about 11205.0452921887. The cubic root of 125553040 is about 500.7363018536.

The spelling of 125553040 in words is "one hundred twenty-five million, five hundred fifty-three thousand, forty".