425633850 has 72 divisors (see below), whose sum is σ = 1146093312. Its totient is φ = 113248800.

The previous prime is 425633849. The next prime is 425633851. The reversal of 425633850 is 58336524.

It is a happy number.

425633850 is a `hidden beast` number, since 42 + 563 + 3 + 8 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (425633849) and next prime (425633851).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (425633851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 288615 + ... + 290085.

Almost surely, 2^425633850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425633850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573046656).

425633850 is an abundant number, since it is smaller than the sum of its proper divisors (720459462).

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

425633850 is a wasteful number, since it uses less digits than its factorization.

425633850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 425633850 is about 20630.8955210383. The cubic root of 425633850 is about 752.2208837425.

The spelling of 425633850 in words is "four hundred twenty-five million, six hundred thirty-three thousand, eight hundred fifty".