445562315531 has 2 divisors, whose sum is σ = 445562315532. Its totient is φ = 445562315530.

The previous prime is 445562315519. The next prime is 445562315537. The reversal of 445562315531 is 135513265544.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445562315531 - 2⁶ = 445562315467 is a prime.

It is a super-2 number, since 2×445562315531² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (445562315537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222781157765 + 222781157766.

It is an arithmetic number, because the mean of its divisors is an integer number (222781157766).

Almost surely, 2^445562315531 is an apocalyptic number.

445562315531 is a deficient number, since it is larger than the sum of its proper divisors (1).

445562315531 is an equidigital number, since it uses as much as digits as its factorization.

445562315531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080000, while the sum is 44.

The spelling of 445562315531 in words is "four hundred forty-five billion, five hundred sixty-two million, three hundred fifteen thousand, five hundred thirty-one".