25228951 has 4 divisors (see below), whose sum is σ = 27522504. Its totient is φ = 22935400.

The previous prime is 25228949. The next prime is 25228963. The reversal of 25228951 is 15982252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25228951 - 2¹ = 25228949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146760 + ... + 1146781.

It is an arithmetic number, because the mean of its divisors is an integer number (6880626).

Almost surely, 2^25228951 is an apocalyptic number.

25228951 is a deficient number, since it is larger than the sum of its proper divisors (2293553).

25228951 is a wasteful number, since it uses less digits than its factorization.

25228951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293552.

The product of its digits is 14400, while the sum is 34.

The square root of 25228951 is about 5022.8429201001. The cubic root of 25228951 is about 293.2916717978.

The spelling of 25228951 in words is "twenty-five million, two hundred twenty-eight thousand, nine hundred fifty-one".