55212015102 has 64 divisors (see below), whose sum is σ = 114782702400. Its totient is φ = 17694802944.

The previous prime is 55212015073. The next prime is 55212015151. The reversal of 55212015102 is 20151021255.

It is a super-2 number, since 2×55212015102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3637024 + ... + 3652172.

It is an arithmetic number, because the mean of its divisors is an integer number (1793479725).

Almost surely, 2^55212015102 is an apocalyptic number.

55212015102 is an abundant number, since it is smaller than the sum of its proper divisors (59570687298).

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

55212015102 is a wasteful number, since it uses less digits than its factorization.

55212015102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15437.

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 55212015102 its reverse (20151021255), we get a palindrome (75363036357).

The spelling of 55212015102 in words is "fifty-five billion, two hundred twelve million, fifteen thousand, one hundred two".