1252657572 has 24 divisors (see below), whose sum is σ = 2951247936. Its totient is φ = 413498208.

The previous prime is 1252657561. The next prime is 1252657591. The reversal of 1252657572 is 2757562521.

It is a super-3 number, since 3×1252657572³ (a number of 28 digits) contains 333 as substring.

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, 505503 + ... + 507974.

It is an arithmetic number, because the mean of its divisors is an integer number (122968664).

Almost surely, 2^1252657572 is an apocalyptic number.

1252657572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252657572 is an abundant number, since it is smaller than the sum of its proper divisors (1698590364).

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

1252657572 is a wasteful number, since it uses less digits than its factorization.

1252657572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013587 (or 1013585 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The square root of 1252657572 is about 35392.9028478875. The cubic root of 1252657572 is about 1077.9802133448.

The spelling of 1252657572 in words is "one billion, two hundred fifty-two million, six hundred fifty-seven thousand, five hundred seventy-two".