25115149 has 8 divisors (see below), whose sum is σ = 26262720. Its totient is φ = 23972256.

The previous prime is 25115107. The next prime is 25115161. The reversal of 25115149 is 94151152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25115149 - 2¹³ = 25106957 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 (25110149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14329 + ... + 15985.

It is an arithmetic number, because the mean of its divisors is an integer number (3282840).

Almost surely, 2^25115149 is an apocalyptic number.

It is an amenable number.

25115149 is a deficient number, since it is larger than the sum of its proper divisors (1147571).

25115149 is a wasteful number, since it uses less digits than its factorization.

25115149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339.

The product of its digits is 1800, while the sum is 28.

The square root of 25115149 is about 5011.5016711561. The cubic root of 25115149 is about 292.8500166193.

It can be divided in two parts, 251 and 15149, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 25115149 in words is "twenty-five million, one hundred fifteen thousand, one hundred forty-nine".