425387565 has 32 divisors (see below), whose sum is σ = 757618560. Its totient is φ = 226461312.

The previous prime is 425387551. The next prime is 425387569. The reversal of 425387565 is 565783524.

425387565 is a `hidden beast` number, since 4 + 2 + 5 + 3 + 87 + 565 = 666.

It is not a de Polignac number, because 425387565 - 2⁷ = 425387437 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425387565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425387569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80742 + ... + 85848.

It is an arithmetic number, because the mean of its divisors is an integer number (23675580).

Almost surely, 2^425387565 is an apocalyptic number.

425387565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425387565 is a deficient number, since it is larger than the sum of its proper divisors (332230995).

425387565 is a wasteful number, since it uses less digits than its factorization.

425387565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5738 (or 5732 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 425387565 is about 20624.9258180484. The cubic root of 425387565 is about 752.0757696072.

The spelling of 425387565 in words is "four hundred twenty-five million, three hundred eighty-seven thousand, five hundred sixty-five".