425857536 has 120 divisors (see below), whose sum is σ = 1323782460. Its totient is φ = 131014656.

The previous prime is 425857519. The next prime is 425857541. The reversal of 425857536 is 635758524.

425857536 is a `hidden beast` number, since 42 + 5 + 8 + 575 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 363131136 + 62726400 = 19056^2 + 7920^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 425857491 and 425857500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56350 + ... + 63458.

Almost surely, 2^425857536 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 425857536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661891230).

425857536 is an abundant number, since it is smaller than the sum of its proper divisors (897924924).

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

425857536 is a wasteful number, since it uses less digits than its factorization.

425857536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7127 counting only the distinct ones).

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

The square root of 425857536 is about 20636.3159502853. The cubic root of 425857536 is about 752.3526337693.

The spelling of 425857536 in words is "four hundred twenty-five million, eight hundred fifty-seven thousand, five hundred thirty-six".