55702638 has 48 divisors (see below), whose sum is σ = 124169136. Its totient is φ = 18040320.

The previous prime is 55702631. The next prime is 55702639. The reversal of 55702638 is 83620755.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55702631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106245 + ... + 106767.

It is an arithmetic number, because the mean of its divisors is an integer number (2586857).

Almost surely, 2^55702638 is an apocalyptic number.

55702638 is an abundant number, since it is smaller than the sum of its proper divisors (68466498).

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

55702638 is a wasteful number, since it uses less digits than its factorization.

55702638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55702638 is about 7463.4199935418. The cubic root of 55702638 is about 381.9078521921.

The spelling of 55702638 in words is "fifty-five million, seven hundred two thousand, six hundred thirty-eight".