125517028 has 36 divisors (see below), whose sum is σ = 275177532. Its totient is φ = 49654080.

The previous prime is 125516981. The next prime is 125517037. The reversal of 125517028 is 820715521.

It can be written as a sum of positive squares in 2 ways, for example, as 27269284 + 98247744 = 5222^2 + 9912^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22083 + ... + 27178.

Almost surely, 2^125517028 is an apocalyptic number.

It is an amenable number.

125517028 is an abundant number, since it is smaller than the sum of its proper divisors (149660504).

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

125517028 is a wasteful number, since it uses less digits than its factorization.

125517028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49292 (or 49283 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 125517028 is about 11203.4382222602. The cubic root of 125517028 is about 500.6884223809.

The spelling of 125517028 in words is "one hundred twenty-five million, five hundred seventeen thousand, twenty-eight".