52004157773621 has 4 divisors (see below), whose sum is σ = 52237360275072. Its totient is φ = 51770955272172.

The previous prime is 52004157773611. The next prime is 52004157773629. The reversal of 52004157773621 is 12637775140025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52004157773621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52004157773621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52004157773629) 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, 116601250391 + ... + 116601250836.

It is an arithmetic number, because the mean of its divisors is an integer number (13059340068768).

Almost surely, 2^{52004157773621} is an apocalyptic number.

It is an amenable number.

52004157773621 is a deficient number, since it is larger than the sum of its proper divisors (233202501451).

52004157773621 is a wasteful number, since it uses less digits than its factorization.

52004157773621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233202501450.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 52004157773621 in words is "fifty-two trillion, four billion, one hundred fifty-seven million, seven hundred seventy-three thousand, six hundred twenty-one".