25266538 has 16 divisors (see below), whose sum is σ = 41459040. Its totient is φ = 11453200.

The previous prime is 25266533. The next prime is 25266551. The reversal of 25266538 is 83566252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25266497 and 25266506.

It is not an unprimeable number, because it can be changed into a prime (25266533) 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, 7848 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (2591190).

Almost surely, 2^25266538 is an apocalyptic number.

25266538 is a deficient number, since it is larger than the sum of its proper divisors (16192502).

25266538 is a wasteful number, since it uses less digits than its factorization.

25266538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173.

The product of its digits is 86400, while the sum is 37.

The square root of 25266538 is about 5026.5831337003. The cubic root of 25266538 is about 293.4372516909.

The spelling of 25266538 in words is "twenty-five million, two hundred sixty-six thousand, five hundred thirty-eight".