425755731 has 8 divisors (see below), whose sum is σ = 578385360. Its totient is φ = 278481632.

The previous prime is 425755723. The next prime is 425755739. The reversal of 425755731 is 137557524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (425755723) and next prime (425755739).

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

It is a cyclic number.

It is not a de Polignac number, because 425755731 - 2³ = 425755723 is a prime.

It is a super-2 number, since 2×425755731² = 362535884958688722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425755731.

It is not an unprimeable number, because it can be changed into a prime (425755739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338696 + ... + 1339013.

It is an arithmetic number, because the mean of its divisors is an integer number (72298170).

Almost surely, 2^425755731 is an apocalyptic number.

425755731 is a deficient number, since it is larger than the sum of its proper divisors (152629629).

425755731 is a wasteful number, since it uses less digits than its factorization.

425755731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677765.

The product of its digits is 147000, while the sum is 39.

The square root of 425755731 is about 20633.8491561802. The cubic root of 425755731 is about 752.2926768137.

The spelling of 425755731 in words is "four hundred twenty-five million, seven hundred fifty-five thousand, seven hundred thirty-one".