25120159 has 4 divisors (see below), whose sum is σ = 25171000. Its totient is φ = 25069320.

The previous prime is 25120141. The next prime is 25120171. The reversal of 25120159 is 95102152.

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 25120159 - 2¹¹ = 25118111 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 (25120189) 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, 24672 + ... + 25669.

It is an arithmetic number, because the mean of its divisors is an integer number (6292750).

Almost surely, 2^25120159 is an apocalyptic number.

25120159 is a deficient number, since it is larger than the sum of its proper divisors (50841).

25120159 is an equidigital number, since it uses as much as digits as its factorization.

25120159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50840.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 25120159 is about 5012.0014964084. The cubic root of 25120159 is about 292.8694880153.

The spelling of 25120159 in words is "twenty-five million, one hundred twenty thousand, one hundred fifty-nine".