502406021055 has 32 divisors (see below), whose sum is σ = 804800102400. Its totient is φ = 267633240192.

The previous prime is 502406020999. The next prime is 502406021057. The reversal of 502406021055 is 550120604205.

It is a de Polignac number, because none of the positive numbers 2^k-502406021055 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502406021057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96669717 + ... + 96674913.

It is an arithmetic number, because the mean of its divisors is an integer number (25150003200).

Almost surely, 2^502406021055 is an apocalyptic number.

502406021055 is a deficient number, since it is larger than the sum of its proper divisors (302394081345).

502406021055 is a wasteful number, since it uses less digits than its factorization.

502406021055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 502406021055 in words is "five hundred two billion, four hundred six million, twenty-one thousand, fifty-five".