55215661062 has 16 divisors (see below), whose sum is σ = 110480670720. Its totient is φ = 18396995592.

The previous prime is 55215661051. The next prime is 55215661073. The reversal of 55215661062 is 26016651255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55215661051) and next prime (55215661073).

It is a self number, because there is not a number n which added to its sum of digits gives 55215661062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2041638 + ... + 2068505.

It is an arithmetic number, because the mean of its divisors is an integer number (6905041920).

Almost surely, 2^55215661062 is an apocalyptic number.

55215661062 is an abundant number, since it is smaller than the sum of its proper divisors (55265009658).

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

55215661062 is a wasteful number, since it uses less digits than its factorization.

55215661062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112387.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 55215661062 in words is "fifty-five billion, two hundred fifteen million, six hundred sixty-one thousand, sixty-two".