425000031 has 4 divisors (see below), whose sum is σ = 566666712. Its totient is φ = 283333352.

The previous prime is 424999969. The next prime is 425000033. The reversal of 425000031 is 130000524.

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

It is a cyclic number.

It is not a de Polignac number, because 425000031 - 2²⁶ = 357891167 is a prime.

It is a super-2 number, since 2×425000031² = 361250052700001922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425000033) 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, 70833336 + ... + 70833341.

It is an arithmetic number, because the mean of its divisors is an integer number (141666678).

Almost surely, 2^425000031 is an apocalyptic number.

425000031 is a deficient number, since it is larger than the sum of its proper divisors (141666681).

425000031 is a wasteful number, since it uses less digits than its factorization.

425000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141666680.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 425000031 is about 20615.5288799487. The cubic root of 425000031 is about 751.8473163827.

Adding to 425000031 its reverse (130000524), we get a palindrome (555000555).

The spelling of 425000031 in words is "four hundred twenty-five million, thirty-one", and thus it is an aban number.