21342525032 has 16 divisors (see below), whose sum is σ = 40019321700. Its totient is φ = 10670705920.

The previous prime is 21342524989. The next prime is 21342525041. The reversal of 21342525032 is 23052524312.

It can be written as a sum of positive squares in 2 ways, for example, as 21127785316 + 214739716 = 145354^2 + 14654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21342524986 and 21342525004.

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, 125594 + ... + 241782.

Almost surely, 2^21342525032 is an apocalyptic number.

It is an amenable number.

21342525032 is a deficient number, since it is larger than the sum of its proper divisors (18676796668).

21342525032 is a wasteful number, since it uses less digits than its factorization.

21342525032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139156 (or 139152 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 21342525032 in words is "twenty-one billion, three hundred forty-two million, five hundred twenty-five thousand, thirty-two".