25772208 has 160 divisors (see below), whose sum is σ = 87613440. Its totient is φ = 6324480.

The previous prime is 25772207. The next prime is 25772267. The reversal of 25772208 is 80227752.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25772207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70041 + ... + 70407.

It is an arithmetic number, because the mean of its divisors is an integer number (547584).

Almost surely, 2^25772208 is an apocalyptic number.

25772208 is a gapful number since it is divisible by the number (28) 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 25772208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43806720).

25772208 is an abundant number, since it is smaller than the sum of its proper divisors (61841232).

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

25772208 is a wasteful number, since it uses less digits than its factorization.

25772208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 25772208 is about 5076.6335302048. The cubic root of 25772208 is about 295.3818974276.

The spelling of 25772208 in words is "twenty-five million, seven hundred seventy-two thousand, two hundred eight".