504220707225 has 27 divisors (see below), whose sum is σ = 903134389183. Its totient is φ = 268912029840.

The previous prime is 504220707181. The next prime is 504220707229. The reversal of 504220707225 is 522707022405.

The square root of 504220707225 is 710085.

It is a perfect power (a square), and thus also a powerful number.

504220707225 is a `hidden beast` number, since 5 + 0 + 422 + 0 + 7 + 0 + 7 + 225 = 666.

It can be written as a sum of positive squares in only one way, i.e., 181519454601 + 322701252624 = 426051^2 + 568068^2 .

It is not a de Polignac number, because 504220707225 - 2³³ = 495630772633 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 504220707225.

It is not an unprimeable number, because it can be changed into a prime (504220707229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10627606 + ... + 10674944.

Almost surely, 2^504220707225 is an apocalyptic number.

504220707225 is the 710085-th square number.

504220707225 is the 355043-rd centered octagonal number.

It is an amenable number.

504220707225 is a deficient number, since it is larger than the sum of its proper divisors (398913681958).

504220707225 is an frugal number, since it uses more digits than its factorization.

504220707225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94694 (or 47347 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

Multiplying 504220707225 by its sum of digits (36), we get a square (18151945460100 = 4260510²).

The spelling of 504220707225 in words is "five hundred four billion, two hundred twenty million, seven hundred seven thousand, two hundred twenty-five".