25022129 has 4 divisors (see below), whose sum is σ = 27296880. Its totient is φ = 22747380.

The previous prime is 25022119. The next prime is 25022167. The reversal of 25022129 is 92122052.

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 a cyclic number.

It is not a de Polignac number, because 25022129 - 2¹⁶ = 24956593 is a prime.

It is a super-2 number, since 2×25022129² = 1252213879385282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25022119) 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, 1137359 + ... + 1137380.

It is an arithmetic number, because the mean of its divisors is an integer number (6824220).

Almost surely, 2^25022129 is an apocalyptic number.

It is an amenable number.

25022129 is a deficient number, since it is larger than the sum of its proper divisors (2274751).

25022129 is a wasteful number, since it uses less digits than its factorization.

25022129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274750.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25022129 is about 5002.2124105240. The cubic root of 25022129 is about 292.4880224964.

The spelling of 25022129 in words is "twenty-five million, twenty-two thousand, one hundred twenty-nine".