125253220 has 24 divisors (see below), whose sum is σ = 263411064. Its totient is φ = 50029056.

The previous prime is 125253197. The next prime is 125253269. The reversal of 125253220 is 22352521.

It can be written as a sum of positive squares in 4 ways, for example, as 30735936 + 94517284 = 5544^2 + 9722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125253191 and 125253200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11004 + ... + 19276.

It is an arithmetic number, because the mean of its divisors is an integer number (10975461).

Almost surely, 2^125253220 is an apocalyptic number.

125253220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125253220 is an abundant number, since it is smaller than the sum of its proper divisors (138157844).

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

125253220 is a wasteful number, since it uses less digits than its factorization.

125253220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039 (or 9037 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 125253220 is about 11191.6585008657. The cubic root of 125253220 is about 500.3373989394.

The spelling of 125253220 in words is "one hundred twenty-five million, two hundred fifty-three thousand, two hundred twenty".