503256506411 has 4 divisors (see below), whose sum is σ = 505214703192. Its totient is φ = 501298309632.

The previous prime is 503256506399. The next prime is 503256506461. The reversal of 503256506411 is 114605652305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503256506411 - 2²⁶ = 503189397547 is a prime.

It is a super-2 number, since 2×503256506411² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503256506461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979098005 + ... + 979098518.

It is an arithmetic number, because the mean of its divisors is an integer number (126303675798).

Almost surely, 2^503256506411 is an apocalyptic number.

503256506411 is a deficient number, since it is larger than the sum of its proper divisors (1958196781).

503256506411 is a wasteful number, since it uses less digits than its factorization.

503256506411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958196780.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 503256506411 in words is "five hundred three billion, two hundred fifty-six million, five hundred six thousand, four hundred eleven".