25261004 has 6 divisors (see below), whose sum is σ = 44206764. Its totient is φ = 12630500.

The previous prime is 25261003. The next prime is 25261021. The reversal of 25261004 is 40016252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25261003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157622 + ... + 3157629.

It is an arithmetic number, because the mean of its divisors is an integer number (7367794).

Almost surely, 2^25261004 is an apocalyptic number.

It is an amenable number.

25261004 is a deficient number, since it is larger than the sum of its proper divisors (18945760).

25261004 is a wasteful number, since it uses less digits than its factorization.

25261004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315255 (or 6315253 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25261004 is about 5026.0326302164. The cubic root of 25261004 is about 293.4158267754.

Adding to 25261004 its reverse (40016252), we get a palindrome (65277256).

The spelling of 25261004 in words is "twenty-five million, two hundred sixty-one thousand, four".