425716965 has 20 divisors (see below), whose sum is σ = 763137804. Its totient is φ = 227048832.

The previous prime is 425716957. The next prime is 425716999. The reversal of 425716965 is 569617524.

425716965 is a `hidden beast` number, since 425 + 7 + 169 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 316911204 + 108805761 = 17802^2 + 10431^2 .

It is not a de Polignac number, because 425716965 - 2³ = 425716957 is a prime.

It is a super-2 number, since 2×425716965² = 362469868577622450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 425716965.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 525172 + ... + 525981.

Almost surely, 2^425716965 is an apocalyptic number.

425716965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425716965 is a deficient number, since it is larger than the sum of its proper divisors (337420839).

425716965 is a wasteful number, since it uses less digits than its factorization.

425716965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051170 (or 1051161 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 425716965 is about 20632.9097560184. The cubic root of 425716965 is about 752.2698434839.

The spelling of 425716965 in words is "four hundred twenty-five million, seven hundred sixteen thousand, nine hundred sixty-five".