19725952 has 32 divisors (see below), whose sum is σ = 41371200. Its totient is φ = 9342720.

The previous prime is 19725941. The next prime is 19725983. The reversal of 19725952 is 25952791.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×19725952² = 778226364612608, which contains 22 as substring.

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, 1624 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (1292850).

Almost surely, 2^19725952 is an apocalyptic number.

It is an amenable number.

19725952 is an abundant number, since it is smaller than the sum of its proper divisors (21645248).

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

19725952 is an equidigital number, since it uses as much as digits as its factorization.

19725952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8144 (or 8132 counting only the distinct ones).

The product of its digits is 56700, while the sum is 40.

The square root of 19725952 is about 4441.3907731700. The cubic root of 19725952 is about 270.1962542054.

The spelling of 19725952 in words is "nineteen million, seven hundred twenty-five thousand, nine hundred fifty-two".