25263623 has 32 divisors (see below), whose sum is σ = 32901120. Its totient is φ = 18833760.

The previous prime is 25263619. The next prime is 25263643. The reversal of 25263623 is 32636252.

It is not a de Polignac number, because 25263623 - 2² = 25263619 is a prime.

It is a super-2 number, since 2×25263623² = 1276501294172258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25263613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304340 + ... + 304422.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^25263623 is an apocalyptic number.

25263623 is a deficient number, since it is larger than the sum of its proper divisors (7637497).

25263623 is a wasteful number, since it uses less digits than its factorization.

25263623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its digits is 12960, while the sum is 29.

The square root of 25263623 is about 5026.2931669372. The cubic root of 25263623 is about 293.4259666402.

Adding to 25263623 its reverse (32636252), we get a palindrome (57899875).

It can be divided in two parts, 2 and 5263623, that added together give a palindrome (5263625).

The spelling of 25263623 in words is "twenty-five million, two hundred sixty-three thousand, six hundred twenty-three".