503262240561 has 28 divisors (see below), whose sum is σ = 762019073460. Its totient is φ = 332186248800.

The previous prime is 503262240557. The next prime is 503262240577. The reversal of 503262240561 is 165042262305.

503262240561 is a `hidden beast` number, since 5 + 0 + 32 + 6 + 22 + 40 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 333946450161 + 169315790400 = 577881^2 + 411480^2 .

It is not a de Polignac number, because 503262240561 - 2² = 503262240557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503262240521) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3343926 + ... + 3491183.

Almost surely, 2^503262240561 is an apocalyptic number.

It is an amenable number.

503262240561 is a deficient number, since it is larger than the sum of its proper divisors (258756832899).

503262240561 is an equidigital number, since it uses as much as digits as its factorization.

503262240561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835228 (or 6835213 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 503262240561 in words is "five hundred three billion, two hundred sixty-two million, two hundred forty thousand, five hundred sixty-one".