55667502 has 72 divisors (see below), whose sum is σ = 135069480. Its totient is φ = 16552800.

The previous prime is 55667489. The next prime is 55667527. The reversal of 55667502 is 20576655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 132649 + ... + 133067.

It is an arithmetic number, because the mean of its divisors is an integer number (1875965).

Almost surely, 2^55667502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55667502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67534740).

55667502 is an abundant number, since it is smaller than the sum of its proper divisors (79401978).

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

55667502 is a wasteful number, since it uses less digits than its factorization.

55667502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 55667502 is about 7461.0657415680. The cubic root of 55667502 is about 381.8275356088.

It can be divided in two parts, 55667 and 502, that added together give a square (56169 = 237²).

The spelling of 55667502 in words is "fifty-five million, six hundred sixty-seven thousand, five hundred two".