55587902 has 4 divisors (see below), whose sum is σ = 83381856. Its totient is φ = 27793950.

The previous prime is 55587899. The next prime is 55587947. The reversal of 55587902 is 20978555.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55587902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13896974 + ... + 13896977.

It is an arithmetic number, because the mean of its divisors is an integer number (20845464).

Almost surely, 2^55587902 is an apocalyptic number.

55587902 is a deficient number, since it is larger than the sum of its proper divisors (27793954).

55587902 is a wasteful number, since it uses less digits than its factorization.

55587902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27793953.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 55587902 is about 7455.7294747060. The cubic root of 55587902 is about 381.6454546879.

The spelling of 55587902 in words is "fifty-five million, five hundred eighty-seven thousand, nine hundred two".