25130535020 has 24 divisors (see below), whose sum is σ = 54476515968. Its totient is φ = 9727948800.

The previous prime is 25130535019. The next prime is 25130535037. The reversal of 25130535020 is 2053503152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20265941 + ... + 20267180.

It is an arithmetic number, because the mean of its divisors is an integer number (2269854832).

Almost surely, 2^25130535020 is an apocalyptic number.

25130535020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25130535020 is an abundant number, since it is smaller than the sum of its proper divisors (29345980948).

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

25130535020 is a wasteful number, since it uses less digits than its factorization.

25130535020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40533161 (or 40533159 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The spelling of 25130535020 in words is "twenty-five billion, one hundred thirty million, five hundred thirty-five thousand, twenty".