1253216524 has 24 divisors (see below), whose sum is σ = 2507339520. Its totient is φ = 536898576.

The previous prime is 1253216519. The next prime is 1253216543. The reversal of 1253216524 is 4256123521.

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, 92769 + ... + 105415.

It is an arithmetic number, because the mean of its divisors is an integer number (104472480).

Almost surely, 2^1253216524 is an apocalyptic number.

1253216524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1253216524 is an abundant number, since it is smaller than the sum of its proper divisors (1254122996).

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

1253216524 is a wasteful number, since it uses less digits than its factorization.

1253216524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16197 (or 16195 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 1253216524 is about 35400.7983525796. The cubic root of 1253216524 is about 1078.1405257376.

The spelling of 1253216524 in words is "one billion, two hundred fifty-three million, two hundred sixteen thousand, five hundred twenty-four".