21248592532 has 12 divisors (see below), whose sum is σ = 37256140096. Its totient is φ = 10603981080.

The previous prime is 21248592509. The next prime is 21248592557. The reversal of 21248592532 is 23529584212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076444 + ... + 5080627.

Almost surely, 2^21248592532 is an apocalyptic number.

It is an amenable number.

21248592532 is a deficient number, since it is larger than the sum of its proper divisors (16007547564).

21248592532 is a wasteful number, since it uses less digits than its factorization.

21248592532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10157598 (or 10157596 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 21248592532 in words is "twenty-one billion, two hundred forty-eight million, five hundred ninety-two thousand, five hundred thirty-two".