25128276 has 12 divisors (see below), whose sum is σ = 58632672. Its totient is φ = 8376088.

The previous prime is 25128263. The next prime is 25128287. The reversal of 25128276 is 67282152.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047000 + ... + 1047023.

It is an arithmetic number, because the mean of its divisors is an integer number (4886056).

Almost surely, 2^25128276 is an apocalyptic number.

It is an amenable number.

25128276 is an abundant number, since it is smaller than the sum of its proper divisors (33504396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25128276 is a wasteful number, since it uses less digits than its factorization.

25128276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094030 (or 2094028 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 25128276 is about 5012.8111873479. The cubic root of 25128276 is about 292.9010292917.

The spelling of 25128276 in words is "twenty-five million, one hundred twenty-eight thousand, two hundred seventy-six".