425564277 has 4 divisors (see below), whose sum is σ = 567419040. Its totient is φ = 283709516.

The previous prime is 425564267. The next prime is 425564287. The reversal of 425564277 is 772465524.

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 (425564267) and next prime (425564287).

It is a cyclic number.

It is not a de Polignac number, because 425564277 - 2⁸ = 425564021 is a prime.

It is a super-2 number, since 2×425564277² = 362209907717065458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425564267) 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, 70927377 + ... + 70927382.

It is an arithmetic number, because the mean of its divisors is an integer number (141854760).

Almost surely, 2^425564277 is an apocalyptic number.

It is an amenable number.

425564277 is a deficient number, since it is larger than the sum of its proper divisors (141854763).

425564277 is a wasteful number, since it uses less digits than its factorization.

425564277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141854762.

The product of its digits is 470400, while the sum is 42.

The square root of 425564277 is about 20629.2093159190. The cubic root of 425564277 is about 752.1798961540.

The spelling of 425564277 in words is "four hundred twenty-five million, five hundred sixty-four thousand, two hundred seventy-seven".