25005278030 has 64 divisors (see below), whose sum is σ = 46798129728. Its totient is φ = 9612656640.

The previous prime is 25005278021. The next prime is 25005278119. The reversal of 25005278030 is 3087250052.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14734142 + ... + 14735838.

It is an arithmetic number, because the mean of its divisors is an integer number (731220777).

Almost surely, 2^25005278030 is an apocalyptic number.

25005278030 is a deficient number, since it is larger than the sum of its proper divisors (21792851698).

25005278030 is a wasteful number, since it uses less digits than its factorization.

25005278030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 25005278030 in words is "twenty-five billion, five million, two hundred seventy-eight thousand, thirty".