25264736 has 72 divisors (see below), whose sum is σ = 59152464. Its totient is φ = 10402560.

The previous prime is 25264691. The next prime is 25264739. The reversal of 25264736 is 63746252.

It is a junction number, because it is equal to n+sod(n) for n = 25264696 and 25264705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25264739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414146 + ... + 414206.

It is an arithmetic number, because the mean of its divisors is an integer number (821562).

Almost surely, 2^25264736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25264736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29576232).

25264736 is an abundant number, since it is smaller than the sum of its proper divisors (33887728).

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

25264736 is an equidigital number, since it uses as much as digits as its factorization.

25264736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 113 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 25264736 is about 5026.4038834936. The cubic root of 25264736 is about 293.4302755802.

The spelling of 25264736 in words is "twenty-five million, two hundred sixty-four thousand, seven hundred thirty-six".