425664526 has 8 divisors (see below), whose sum is σ = 729710640. Its totient is φ = 182427648.

The previous prime is 425664521. The next prime is 425664529. The reversal of 425664526 is 625466524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425664521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15202291 + ... + 15202318.

It is an arithmetic number, because the mean of its divisors is an integer number (91213830).

Almost surely, 2^425664526 is an apocalyptic number.

425664526 is a deficient number, since it is larger than the sum of its proper divisors (304046114).

425664526 is a wasteful number, since it uses less digits than its factorization.

425664526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30404618.

The product of its digits is 345600, while the sum is 40.

The square root of 425664526 is about 20631.6389557398. The cubic root of 425664526 is about 752.2389544963.

The spelling of 425664526 in words is "four hundred twenty-five million, six hundred sixty-four thousand, five hundred twenty-six".