25266280 has 32 divisors (see below), whose sum is σ = 61223400. Its totient is φ = 9328896.

The previous prime is 25266277. The next prime is 25266281. The reversal of 25266280 is 8266252.

It can be written as a sum of positive squares in 4 ways, for example, as 17791524 + 7474756 = 4218^2 + 2734^2 .

It is not an unprimeable number, because it can be changed into a prime (25266281) 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, 23775 + ... + 24814.

Almost surely, 2^25266280 is an apocalyptic number.

25266280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25266280 is an abundant number, since it is smaller than the sum of its proper divisors (35957120).

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

25266280 is a wasteful number, since it uses less digits than its factorization.

25266280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48613 (or 48609 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 25266280 is about 5026.5574700783. The cubic root of 25266280 is about 293.4362529118.

The spelling of 25266280 in words is "twenty-five million, two hundred sixty-six thousand, two hundred eighty".