25229237 has 4 divisors (see below), whose sum is σ = 27522816. Its totient is φ = 22935660.

The previous prime is 25229221. The next prime is 25229251. The reversal of 25229237 is 73292252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25229237 - 2⁴ = 25229221 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 (25225237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146773 + ... + 1146794.

It is an arithmetic number, because the mean of its divisors is an integer number (6880704).

Almost surely, 2^25229237 is an apocalyptic number.

It is an amenable number.

25229237 is a deficient number, since it is larger than the sum of its proper divisors (2293579).

25229237 is a wasteful number, since it uses less digits than its factorization.

25229237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293578.

The product of its digits is 15120, while the sum is 32.

The square root of 25229237 is about 5022.8713899522. The cubic root of 25229237 is about 293.2927800630.

The spelling of 25229237 in words is "twenty-five million, two hundred twenty-nine thousand, two hundred thirty-seven".