425408566 has 16 divisors (see below), whose sum is σ = 703019088. Its totient is φ = 191452000.

The previous prime is 425408509. The next prime is 425408587. The reversal of 425408566 is 665804524.

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, 93505 + ... + 97948.

It is an arithmetic number, because the mean of its divisors is an integer number (43938693).

Almost surely, 2^425408566 is an apocalyptic number.

425408566 is a deficient number, since it is larger than the sum of its proper divisors (277610522).

425408566 is a wasteful number, since it uses less digits than its factorization.

425408566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191567.

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 425408566 is about 20625.4349287476. The cubic root of 425408566 is about 752.0881458374.

The spelling of 425408566 in words is "four hundred twenty-five million, four hundred eight thousand, five hundred sixty-six".