55737642 has 8 divisors (see below), whose sum is σ = 111475296. Its totient is φ = 18579212.

The previous prime is 55737613. The next prime is 55737653. The reversal of 55737642 is 24673755.

It is a sphenic number, since it is the product of 3 distinct primes.

55737642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55737642.

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, 4644798 + ... + 4644809.

It is an arithmetic number, because the mean of its divisors is an integer number (13934412).

Almost surely, 2^55737642 is an apocalyptic number.

55737642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55737642 is a wasteful number, since it uses less digits than its factorization.

55737642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9289612.

The product of its digits is 176400, while the sum is 39.

The square root of 55737642 is about 7465.7646627790. The cubic root of 55737642 is about 381.9878334621.

The spelling of 55737642 in words is "fifty-five million, seven hundred thirty-seven thousand, six hundred forty-two".