55212102504 has 96 divisors (see below), whose sum is σ = 161359380000. Its totient is φ = 16954151040.

The previous prime is 55212102497. The next prime is 55212102511. The reversal of 55212102504 is 40520121255.

55212102504 is a `hidden beast` number, since 5 + 52 + 1 + 2 + 102 + 504 = 666.

It is an interprime number because it is at equal distance from previous prime (55212102497) and next prime (55212102511).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407959 + ... + 526169.

It is an arithmetic number, because the mean of its divisors is an integer number (1680826875).

Almost surely, 2^55212102504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55212102504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80679690000).

55212102504 is an abundant number, since it is smaller than the sum of its proper divisors (106147277496).

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

55212102504 is a wasteful number, since it uses less digits than its factorization.

55212102504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118735 (or 118728 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 55212102504 its reverse (40520121255), we get a palindrome (95732223759).

The spelling of 55212102504 in words is "fifty-five billion, two hundred twelve million, one hundred two thousand, five hundred four".