623225251 has 16 divisors (see below), whose sum is σ = 729181440. Its totient is φ = 526612320.

The previous prime is 623225237. The next prime is 623225261. The reversal of 623225251 is 152522326.

It is a cyclic number.

It is not a de Polignac number, because 623225251 - 2¹⁵ = 623192483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623225261) 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, 17055 + ... + 39208.

It is an arithmetic number, because the mean of its divisors is an integer number (45573840).

Almost surely, 2^623225251 is an apocalyptic number.

623225251 is a deficient number, since it is larger than the sum of its proper divisors (105956189).

623225251 is a wasteful number, since it uses less digits than its factorization.

623225251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56346.

The product of its digits is 7200, while the sum is 28.

The square root of 623225251 is about 24964.4797862884. The cubic root of 623225251 is about 854.1779319627.

Adding to 623225251 its reverse (152522326), we get a palindrome (775747577).

The spelling of 623225251 in words is "six hundred twenty-three million, two hundred twenty-five thousand, two hundred fifty-one".