425605870 has 16 divisors (see below), whose sum is σ = 767698560. Its totient is φ = 169885024.

The previous prime is 425605861. The next prime is 425605919. The reversal of 425605870 is 78506524.

It is a happy number.

It is a super-2 number, since 2×425605870² = 362280713156913800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39637 + ... + 49216.

It is an arithmetic number, because the mean of its divisors is an integer number (47981160).

Almost surely, 2^425605870 is an apocalyptic number.

425605870 is a deficient number, since it is larger than the sum of its proper divisors (342092690).

425605870 is a wasteful number, since it uses less digits than its factorization.

425605870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89339.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 425605870 is about 20630.2174006965. The cubic root of 425605870 is about 752.2044004032.

The spelling of 425605870 in words is "four hundred twenty-five million, six hundred five thousand, eight hundred seventy".