25761951 has 12 divisors (see below), whose sum is σ = 37463400. Its totient is φ = 17058480.

The previous prime is 25761941. The next prime is 25761971. The reversal of 25761951 is 15916752.

It is not a de Polignac number, because 25761951 - 2¹⁰ = 25760927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25761941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8265 + ... + 10946.

It is an arithmetic number, because the mean of its divisors is an integer number (3121950).

Almost surely, 2^25761951 is an apocalyptic number.

25761951 is a deficient number, since it is larger than the sum of its proper divisors (11701449).

25761951 is a wasteful number, since it uses less digits than its factorization.

25761951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366 (or 19363 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 25761951 is about 5075.6232129661. The cubic root of 25761951 is about 295.3427061905.

The spelling of 25761951 in words is "twenty-five million, seven hundred sixty-one thousand, nine hundred fifty-one".