52064632621 has 4 divisors (see below), whose sum is σ = 53471784892. Its totient is φ = 50657480352.

The previous prime is 52064632619. The next prime is 52064632681. The reversal of 52064632621 is 12623646025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45654868900 + 6409763721 = 213670^2 + 80061^2 .

It is a cyclic number.

It is not a de Polignac number, because 52064632621 - 2¹ = 52064632619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1407152233 = 52064632621 / (5 + 2 + 0 + 6 + 4 + 6 + 3 + 2 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52064632681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703576080 + ... + 703576153.

It is an arithmetic number, because the mean of its divisors is an integer number (13367946223).

Almost surely, 2^52064632621 is an apocalyptic number.

It is an amenable number.

52064632621 is a deficient number, since it is larger than the sum of its proper divisors (1407152271).

52064632621 is a wasteful number, since it uses less digits than its factorization.

52064632621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407152270.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 52064632621 in words is "fifty-two billion, sixty-four million, six hundred thirty-two thousand, six hundred twenty-one".