425844564 has 12 divisors (see below), whose sum is σ = 993637344. Its totient is φ = 141948184.

The previous prime is 425844557. The next prime is 425844571. The reversal of 425844564 is 465448524.

It is an interprime number because it is at equal distance from previous prime (425844557) and next prime (425844571).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17743512 + ... + 17743535.

It is an arithmetic number, because the mean of its divisors is an integer number (82803112).

Almost surely, 2^425844564 is an apocalyptic number.

It is an amenable number.

425844564 is an abundant number, since it is smaller than the sum of its proper divisors (567792780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425844564 is a wasteful number, since it uses less digits than its factorization.

425844564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35487054 (or 35487052 counting only the distinct ones).

The product of its digits is 614400, while the sum is 42.

The square root of 425844564 is about 20636.0016476061. The cubic root of 425844564 is about 752.3449945812.

The spelling of 425844564 in words is "four hundred twenty-five million, eight hundred forty-four thousand, five hundred sixty-four".