55571652 has 36 divisors (see below), whose sum is σ = 143743600. Its totient is φ = 18092592.

The previous prime is 55571639. The next prime is 55571683. The reversal of 55571652 is 25617555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16402 + ... + 19497.

Almost surely, 2^55571652 is an apocalyptic number.

It is an amenable number.

55571652 is an abundant number, since it is smaller than the sum of its proper divisors (88171948).

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

55571652 is a wasteful number, since it uses less digits than its factorization.

55571652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35952 (or 35947 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55571652 is about 7454.6396291169. The cubic root of 55571652 is about 381.6082622844.

The spelling of 55571652 in words is "fifty-five million, five hundred seventy-one thousand, six hundred fifty-two".