425251623 has 16 divisors (see below), whose sum is σ = 593392896. Its totient is φ = 270378240.

The previous prime is 425251573. The next prime is 425251637. The reversal of 425251623 is 326152524.

It is not a de Polignac number, because 425251623 - 2⁹ = 425251111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425251643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15063 + ... + 32823.

It is an arithmetic number, because the mean of its divisors is an integer number (37087056).

Almost surely, 2^425251623 is an apocalyptic number.

425251623 is a deficient number, since it is larger than the sum of its proper divisors (168141273).

425251623 is a wasteful number, since it uses less digits than its factorization.

425251623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18134.

The product of its digits is 14400, while the sum is 30.

The square root of 425251623 is about 20621.6299792233. The cubic root of 425251623 is about 751.9956469257.

Subtracting from 425251623 its reverse (326152524), we obtain a palindrome (99099099).

The spelling of 425251623 in words is "four hundred twenty-five million, two hundred fifty-one thousand, six hundred twenty-three".