425555431 has 8 divisors (see below), whose sum is σ = 487475744. Its totient is φ = 363916800.

The previous prime is 425555423. The next prime is 425555443. The reversal of 425555431 is 134555524.

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 425555431 - 2³ = 425555423 is a prime.

It is a super-2 number, since 2×425555431² = 362194849707191522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425555491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67170 + ... + 73231.

It is an arithmetic number, because the mean of its divisors is an integer number (60934468).

Almost surely, 2^425555431 is an apocalyptic number.

425555431 is a deficient number, since it is larger than the sum of its proper divisors (61920313).

425555431 is a wasteful number, since it uses less digits than its factorization.

425555431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140841.

The product of its digits is 60000, while the sum is 34.

The square root of 425555431 is about 20628.9949100774. The cubic root of 425555431 is about 752.1746843840.

The spelling of 425555431 in words is "four hundred twenty-five million, five hundred fifty-five thousand, four hundred thirty-one".