55743372 has 18 divisors (see below), whose sum is σ = 140906948. Its totient is φ = 18581112.

The previous prime is 55743371. The next prime is 55743383. The reversal of 55743372 is 27334755.

55743372 is a `hidden beast` number, since 557 + 4 + 33 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1548427 = 55743372 / (5 + 5 + 7 + 4 + 3 + 3 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (55743371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 774178 + ... + 774249.

Almost surely, 2^55743372 is an apocalyptic number.

It is an amenable number.

55743372 is an abundant number, since it is smaller than the sum of its proper divisors (85163576).

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

55743372 is a wasteful number, since it uses less digits than its factorization.

55743372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548437 (or 1548432 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 55743372 is about 7466.1484046327. The cubic root of 55743372 is about 382.0009228526. Note that the first 3 decimals are identical.

The spelling of 55743372 in words is "fifty-five million, seven hundred forty-three thousand, three hundred seventy-two".