55212928929 has 24 divisors (see below), whose sum is σ = 84420747840. Its totient is φ = 34712852832.

The previous prime is 55212928919. The next prime is 55212928949. The reversal of 55212928929 is 92982921255.

55212928929 is a `hidden beast` number, since 5 + 521 + 2 + 9 + 28 + 92 + 9 = 666.

It is not a de Polignac number, because 55212928929 - 2¹⁶ = 55212863393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55212928919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448589 + ... + 2471034.

It is an arithmetic number, because the mean of its divisors is an integer number (3517531160).

Almost surely, 2^55212928929 is an apocalyptic number.

It is an amenable number.

55212928929 is a deficient number, since it is larger than the sum of its proper divisors (29207818911).

55212928929 is a wasteful number, since it uses less digits than its factorization.

55212928929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919701 (or 4919698 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The spelling of 55212928929 in words is "fifty-five billion, two hundred twelve million, nine hundred twenty-eight thousand, nine hundred twenty-nine".