1251525532 has 24 divisors (see below), whose sum is σ = 2235415952. Its totient is φ = 612921600.

The previous prime is 1251525463. The next prime is 1251525547. The reversal of 1251525532 is 2355251521.

It is a junction number, because it is equal to n+sod(n) for n = 1251525494 and 1251525503.

It is a congruent number.

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, 48163 + ... + 69445.

Almost surely, 2^1251525532 is an apocalyptic number.

It is an amenable number.

1251525532 is a deficient number, since it is larger than the sum of its proper divisors (983890420).

1251525532 is a wasteful number, since it uses less digits than its factorization.

1251525532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21589 (or 21587 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 1251525532 is about 35376.9067613323. The cubic root of 1251525532 is about 1077.6553880728.

The spelling of 1251525532 in words is "one billion, two hundred fifty-one million, five hundred twenty-five thousand, five hundred thirty-two".