19975432552 has 64 divisors (see below), whose sum is σ = 39687459840. Its totient is φ = 9410188800.

The previous prime is 19975432537. The next prime is 19975432571. The reversal of 19975432552 is 25523457991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19975432552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5661813 + ... + 5665339.

It is an arithmetic number, because the mean of its divisors is an integer number (620116560).

Almost surely, 2^19975432552 is an apocalyptic number.

It is an amenable number.

19975432552 is a deficient number, since it is larger than the sum of its proper divisors (19712027288).

19975432552 is a wasteful number, since it uses less digits than its factorization.

19975432552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4158 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 52.

The spelling of 19975432552 in words is "nineteen billion, nine hundred seventy-five million, four hundred thirty-two thousand, five hundred fifty-two".