55820699502 has 8 divisors (see below), whose sum is σ = 111641399016. Its totient is φ = 18606899832.

The previous prime is 55820699491. The next prime is 55820699531. The reversal of 55820699502 is 20599602855.

It is a sphenic number, since it is the product of 3 distinct primes.

55820699502 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4651724953 + ... + 4651724964.

It is an arithmetic number, because the mean of its divisors is an integer number (13955174877).

Almost surely, 2^55820699502 is an apocalyptic number.

55820699502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55820699502 is a wasteful number, since it uses less digits than its factorization.

55820699502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303449922.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 55820699502 in words is "fifty-five billion, eight hundred twenty million, six hundred ninety-nine thousand, five hundred two".