251716483 has 4 divisors (see below), whose sum is σ = 255164728. Its totient is φ = 248268240.

The previous prime is 251716469. The next prime is 251716489. The reversal of 251716483 is 384617152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251716483 is a prime.

It is a super-2 number, since 2×251716483² = 126722375627778578, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (251716489) 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, 1724013 + ... + 1724158.

It is an arithmetic number, because the mean of its divisors is an integer number (63791182).

Almost surely, 2^251716483 is an apocalyptic number.

251716483 is a deficient number, since it is larger than the sum of its proper divisors (3448245).

251716483 is an equidigital number, since it uses as much as digits as its factorization.

251716483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448244.

The product of its digits is 40320, while the sum is 37.

The square root of 251716483 is about 15865.5754071512. The cubic root of 251716483 is about 631.3989931872.

The spelling of 251716483 in words is "two hundred fifty-one million, seven hundred sixteen thousand, four hundred eighty-three".