25254634 has 4 divisors (see below), whose sum is σ = 37881954. Its totient is φ = 12627316.

The previous prime is 25254613. The next prime is 25254653. The reversal of 25254634 is 43645252.

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

It can be written as a sum of positive squares in only one way, i.e., 23551609 + 1703025 = 4853^2 + 1305^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25254596 and 25254605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6313657 + ... + 6313660.

Almost surely, 2^25254634 is an apocalyptic number.

25254634 is a deficient number, since it is larger than the sum of its proper divisors (12627320).

25254634 is a wasteful number, since it uses less digits than its factorization.

25254634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627319.

The product of its digits is 28800, while the sum is 31.

The square root of 25254634 is about 5025.3988896405. The cubic root of 25254634 is about 293.3911614066.

Adding to 25254634 its reverse (43645252), we get a palindrome (68899886).

The spelling of 25254634 in words is "twenty-five million, two hundred fifty-four thousand, six hundred thirty-four".