25491464 has 32 divisors (see below), whose sum is σ = 52056000. Its totient is φ = 11656512.

The previous prime is 25491457. The next prime is 25491467. The reversal of 25491464 is 46419452.

It is not an unprimeable number, because it can be changed into a prime (25491467) 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, 1517 + ... + 7299.

It is an arithmetic number, because the mean of its divisors is an integer number (1626750).

Almost surely, 2^25491464 is an apocalyptic number.

It is an amenable number.

25491464 is an abundant number, since it is smaller than the sum of its proper divisors (26564536).

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

25491464 is a wasteful number, since it uses less digits than its factorization.

25491464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837 (or 5833 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 25491464 is about 5048.9072084957. The cubic root of 25491464 is about 294.3054194149.

The spelling of 25491464 in words is "twenty-five million, four hundred ninety-one thousand, four hundred sixty-four".