21552055254 has 48 divisors (see below), whose sum is σ = 47953451520. Its totient is φ = 6993146160.

The previous prime is 21552055237. The next prime is 21552055267. The reversal of 21552055254 is 45255025512.

21552055254 is a `hidden beast` number, since 2 + 1 + 5 + 52 + 0 + 552 + 54 = 666.

It is a congruent number.

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, 5772 + ... + 207695.

It is an arithmetic number, because the mean of its divisors is an integer number (999030240).

Almost surely, 2^21552055254 is an apocalyptic number.

21552055254 is an abundant number, since it is smaller than the sum of its proper divisors (26401396266).

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

21552055254 is a wasteful number, since it uses less digits than its factorization.

21552055254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213625 (or 213622 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 21552055254 in words is "twenty-one billion, five hundred fifty-two million, fifty-five thousand, two hundred fifty-four".