52354206621 has 48 divisors (see below), whose sum is σ = 84664419840. Its totient is φ = 30980828160.

The previous prime is 52354206617. The next prime is 52354206631. The reversal of 52354206621 is 12660245325.

52354206621 is a `hidden beast` number, since 5 + 2 + 3 + 5 + 4 + 20 + 6 + 621 = 666.

52354206621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52354206621 - 2² = 52354206617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52354206631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 607881 + ... + 688641.

It is an arithmetic number, because the mean of its divisors is an integer number (1763842080).

Almost surely, 2^52354206621 is an apocalyptic number.

52354206621 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52354206621 is a deficient number, since it is larger than the sum of its proper divisors (32310213219).

52354206621 is a wasteful number, since it uses less digits than its factorization.

52354206621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81026 (or 81023 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 52354206621 in words is "fifty-two billion, three hundred fifty-four million, two hundred six thousand, six hundred twenty-one".