55212102450 has 72 divisors (see below), whose sum is σ = 149697533700. Its totient is φ = 14588138880.

The previous prime is 55212102437. The next prime is 55212102493. The reversal of 55212102450 is 5420121255.

55212102450 is a `hidden beast` number, since 552 + 1 + 2 + 102 + 4 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 16371970209 + 38840132241 = 127953^2 + 197079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 513765 + ... + 611864.

Almost surely, 2^55212102450 is an apocalyptic number.

55212102450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55212102450 is an abundant number, since it is smaller than the sum of its proper divisors (94485431250).

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

55212102450 is a wasteful number, since it uses less digits than its factorization.

55212102450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125756 (or 1125748 counting only the distinct ones).

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

The spelling of 55212102450 in words is "fifty-five billion, two hundred twelve million, one hundred two thousand, four hundred fifty".