555643972 has 48 divisors (see below), whose sum is σ = 1086624000. Its totient is φ = 246954240.

The previous prime is 555643951. The next prime is 555644003. The reversal of 555643972 is 279346555.

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, 166779 + ... + 170077.

It is an arithmetic number, because the mean of its divisors is an integer number (22638000).

Almost surely, 2^555643972 is an apocalyptic number.

555643972 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

555643972 is a deficient number, since it is larger than the sum of its proper divisors (530980028).

555643972 is a wasteful number, since it uses less digits than its factorization.

555643972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3434 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 46.

The square root of 555643972 is about 23572.1015609555. The cubic root of 555643972 is about 822.1142998707.

It can be divided in two parts, 55564 and 3972, that added together give a square (59536 = 244²).

The spelling of 555643972 in words is "five hundred fifty-five million, six hundred forty-three thousand, nine hundred seventy-two".