25250149 has 4 divisors (see below), whose sum is σ = 25323264. Its totient is φ = 25177036.

The previous prime is 25250143. The next prime is 25250179. The reversal of 25250149 is 94105252.

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 25250149 - 2¹¹ = 25248101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250143) 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, 36037 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (6330816).

Almost surely, 2^25250149 is an apocalyptic number.

It is an amenable number.

25250149 is a deficient number, since it is larger than the sum of its proper divisors (73115).

25250149 is an equidigital number, since it uses as much as digits as its factorization.

25250149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73114.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25250149 is about 5024.9526365927. The cubic root of 25250149 is about 293.3737924851.

The spelling of 25250149 in words is "twenty-five million, two hundred fifty thousand, one hundred forty-nine".