25349456 has 20 divisors (see below), whose sum is σ = 53579904. Its totient is φ = 11522400.

The previous prime is 25349449. The next prime is 25349459. The reversal of 25349456 is 65494352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25349459) 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, 71840 + ... + 72191.

Almost surely, 2^25349456 is an apocalyptic number.

It is an amenable number.

25349456 is an abundant number, since it is smaller than the sum of its proper divisors (28230448).

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

25349456 is a wasteful number, since it uses less digits than its factorization.

25349456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144050 (or 144044 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 25349456 is about 5034.8243266275. The cubic root of 25349456 is about 293.7578953061.

Subtracting 25349456 from its reverse (65494352), we obtain a square (40144896 = 6336²).

The spelling of 25349456 in words is "twenty-five million, three hundred forty-nine thousand, four hundred fifty-six".