504220121357 has 16 divisors (see below), whose sum is σ = 514293318000. Its totient is φ = 494250024960.

The previous prime is 504220121341. The next prime is 504220121411. The reversal of 504220121357 is 753121022405.

It can be written as a sum of positive squares in 8 ways, for example, as 22113474436 + 482106646921 = 148706^2 + 694339^2 .

It is a cyclic number.

It is not a de Polignac number, because 504220121357 - 2⁴ = 504220121341 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 (504220121557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32229257 + ... + 32244897.

It is an arithmetic number, because the mean of its divisors is an integer number (32143332375).

Almost surely, 2^504220121357 is an apocalyptic number.

It is an amenable number.

504220121357 is a deficient number, since it is larger than the sum of its proper divisors (10073196643).

504220121357 is a wasteful number, since it uses less digits than its factorization.

504220121357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18896.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 504220121357 in words is "five hundred four billion, two hundred twenty million, one hundred twenty-one thousand, three hundred fifty-seven".