425266657 has 4 divisors (see below), whose sum is σ = 427493376. Its totient is φ = 423039940.

The previous prime is 425266651. The next prime is 425266663. The reversal of 425266657 is 756662524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (425266651) and next prime (425266663).

It is a cyclic number.

It is not a de Polignac number, because 425266657 - 2¹⁹ = 424742369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425266651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113073 + ... + 1113454.

It is an arithmetic number, because the mean of its divisors is an integer number (106873344).

Almost surely, 2^425266657 is an apocalyptic number.

It is an amenable number.

425266657 is a deficient number, since it is larger than the sum of its proper divisors (2226719).

425266657 is a wasteful number, since it uses less digits than its factorization.

425266657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226718.

The product of its digits is 604800, while the sum is 43.

The square root of 425266657 is about 20621.9944961684. The cubic root of 425266657 is about 752.0045086354.

The spelling of 425266657 in words is "four hundred twenty-five million, two hundred sixty-six thousand, six hundred fifty-seven".