503567641 has 2 divisors, whose sum is σ = 503567642. Its totient is φ = 503567640.

The previous prime is 503567639. The next prime is 503567707. The reversal of 503567641 is 146765305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396010000 + 107557641 = 19900^2 + 10371^2 .

It is a cyclic number.

It is not a de Polignac number, because 503567641 - 2¹ = 503567639 is a prime.

Together with 503567639, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 503567641.

It is not a weakly prime, because it can be changed into another prime (503567611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251783820 + 251783821.

It is an arithmetic number, because the mean of its divisors is an integer number (251783821).

Almost surely, 2^503567641 is an apocalyptic number.

503567641 is the 14193-rd centered pentagonal number.

It is an amenable number.

503567641 is a deficient number, since it is larger than the sum of its proper divisors (1).

503567641 is an equidigital number, since it uses as much as digits as its factorization.

503567641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 503567641 is about 22440.3128543254. The cubic root of 503567641 is about 795.5838128259.

The spelling of 503567641 in words is "five hundred three million, five hundred sixty-seven thousand, six hundred forty-one".