504440050122551 has 4 divisors (see below), whose sum is σ = 504440107120104. Its totient is φ = 504439993125000.

The previous prime is 504440050122523. The next prime is 504440050122557. The reversal of 504440050122551 is 155221050044405.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504440050122551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504440050122557) 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, 12064400 + ... + 33976901.

It is an arithmetic number, because the mean of its divisors is an integer number (126110026780026).

Almost surely, 2^{504440050122551} is an apocalyptic number.

504440050122551 is a deficient number, since it is larger than the sum of its proper divisors (56997553).

504440050122551 is a wasteful number, since it uses less digits than its factorization.

504440050122551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56997552.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 504440050122551 in words is "five hundred four trillion, four hundred forty billion, fifty million, one hundred twenty-two thousand, five hundred fifty-one".