425165250 has 64 divisors (see below), whose sum is σ = 1077178752. Its totient is φ = 111672000.

The previous prime is 425165233. The next prime is 425165267. The reversal of 425165250 is 52561524.

It is an interprime number because it is at equal distance from previous prime (425165233) and next prime (425165267).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46020 + ... + 54480.

It is an arithmetic number, because the mean of its divisors is an integer number (16830918).

Almost surely, 2^425165250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425165250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538589376).

425165250 is an abundant number, since it is smaller than the sum of its proper divisors (652013502).

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

425165250 is a wasteful number, since it uses less digits than its factorization.

425165250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548 (or 8538 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 425165250 is about 20619.5356397762. The cubic root of 425165250 is about 751.9447307822.

The spelling of 425165250 in words is "four hundred twenty-five million, one hundred sixty-five thousand, two hundred fifty".