50563531 has 4 divisors (see below), whose sum is σ = 51420600. Its totient is φ = 49706464.

The previous prime is 50563519. The next prime is 50563543. The reversal of 50563531 is 13536505.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (50563519) and next prime (50563543).

It is a cyclic number.

It is not a de Polignac number, because 50563531 - 2¹⁵ = 50530763 is a prime.

It is a super-2 number, since 2×50563531² = 5113341334375922, which contains 22 as substring.

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 50563531.

It is not an unprimeable number, because it can be changed into a prime (50563561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428446 + ... + 428563.

It is an arithmetic number, because the mean of its divisors is an integer number (12855150).

Almost surely, 2^50563531 is an apocalyptic number.

50563531 is a deficient number, since it is larger than the sum of its proper divisors (857069).

50563531 is an equidigital number, since it uses as much as digits as its factorization.

50563531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857068.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 50563531 is about 7110.8038223537. The cubic root of 50563531 is about 369.7820264707.

The spelling of 50563531 in words is "fifty million, five hundred sixty-three thousand, five hundred thirty-one".