425613523 has 2 divisors, whose sum is σ = 425613524. Its totient is φ = 425613522.

The previous prime is 425613521. The next prime is 425613533. The reversal of 425613523 is 325316524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425613523 - 2¹ = 425613521 is a prime.

It is a super-2 number, since 2×425613523² = 362293741920943058, which contains 22 as substring.

Together with 425613521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (425613521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212806761 + 212806762.

It is an arithmetic number, because the mean of its divisors is an integer number (212806762).

Almost surely, 2^425613523 is an apocalyptic number.

425613523 is a deficient number, since it is larger than the sum of its proper divisors (1).

425613523 is an equidigital number, since it uses as much as digits as its factorization.

425613523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 425613523 is about 20630.4028802154. The cubic root of 425613523 is about 752.2089089452.

The spelling of 425613523 in words is "four hundred twenty-five million, six hundred thirteen thousand, five hundred twenty-three".