55643052 has 12 divisors (see below), whose sum is σ = 129833816. Its totient is φ = 18547680.

The previous prime is 55643051. The next prime is 55643053. The reversal of 55643052 is 25034655.

It is an interprime number because it is at equal distance from previous prime (55643051) and next prime (55643053).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55643052² = 6192298471749408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55643051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318449 + ... + 2318472.

Almost surely, 2^55643052 is an apocalyptic number.

It is an amenable number.

55643052 is an abundant number, since it is smaller than the sum of its proper divisors (74190764).

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

55643052 is a wasteful number, since it uses less digits than its factorization.

55643052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636928 (or 4636926 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 55643052 is about 7459.4270557463. The cubic root of 55643052 is about 381.7716259665.

The spelling of 55643052 in words is "fifty-five million, six hundred forty-three thousand, fifty-two".