25773264 has 120 divisors (see below), whose sum is σ = 80432352. Its totient is φ = 7637760.

The previous prime is 25773259. The next prime is 25773283. The reversal of 25773264 is 46237752.

It is a happy number.

It is a super-2 number, since 2×25773264² = 1328522274427392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83799 + ... + 84105.

Almost surely, 2^25773264 is an apocalyptic number.

25773264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25773264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40216176).

25773264 is an abundant number, since it is smaller than the sum of its proper divisors (54659088).

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

25773264 is a wasteful number, since it uses less digits than its factorization.

25773264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 376 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 25773264 is about 5076.7375350711. The cubic root of 25773264 is about 295.3859317349.

The spelling of 25773264 in words is "twenty-five million, seven hundred seventy-three thousand, two hundred sixty-four".