425685461 has 4 divisors (see below), whose sum is σ = 440364300. Its totient is φ = 411006624.

The previous prime is 425685437. The next prime is 425685499. The reversal of 425685461 is 164586524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194463025 + 231222436 = 13945^2 + 15206^2 .

It is a cyclic number.

It is not a de Polignac number, because 425685461 - 2²² = 421491157 is a prime.

It is a super-2 number, since 2×425685461² = 362416223413565042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425685061) 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, 7339376 + ... + 7339433.

It is an arithmetic number, because the mean of its divisors is an integer number (110091075).

Almost surely, 2^425685461 is an apocalyptic number.

It is an amenable number.

425685461 is a deficient number, since it is larger than the sum of its proper divisors (14678839).

425685461 is a wasteful number, since it uses less digits than its factorization.

425685461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14678838.

The product of its digits is 230400, while the sum is 41.

The square root of 425685461 is about 20632.1463013425. The cubic root of 425685461 is about 752.2512864803.

The spelling of 425685461 in words is "four hundred twenty-five million, six hundred eighty-five thousand, four hundred sixty-one".