25258400630 has 16 divisors (see below), whose sum is σ = 45471633984. Its totient is φ = 10101912960.

The previous prime is 25258400623. The next prime is 25258400639. The reversal of 25258400630 is 3600485252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25258400639) 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, 106142 + ... + 248561.

It is an arithmetic number, because the mean of its divisors is an integer number (2841977124).

Almost surely, 2^25258400630 is an apocalyptic number.

25258400630 is a deficient number, since it is larger than the sum of its proper divisors (20213233354).

25258400630 is a wasteful number, since it uses less digits than its factorization.

25258400630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361831.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 25258400630 its reverse (3600485252), we get a palindrome (28858885882).

The spelling of 25258400630 in words is "twenty-five billion, two hundred fifty-eight million, four hundred thousand, six hundred thirty".