425691504 has 320 divisors, whose sum is σ = 1523712000. Its totient is φ = 111041280.

The previous prime is 425691503. The next prime is 425691557. The reversal of 425691504 is 405196524.

425691504 is a `hidden beast` number, since 42 + 569 + 1 + 50 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425691503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1781017 + ... + 1781255.

It is an arithmetic number, because the mean of its divisors is an integer number (4761600).

Almost surely, 2^425691504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425691504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761856000).

425691504 is an abundant number, since it is smaller than the sum of its proper divisors (1098020496).

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

425691504 is a wasteful number, since it uses less digits than its factorization.

425691504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 425691504 is about 20632.2927470507. The cubic root of 425691504 is about 752.2548460984.

The spelling of 425691504 in words is "four hundred twenty-five million, six hundred ninety-one thousand, five hundred four".