25064230306520 has 64 divisors (see below), whose sum is σ = 56522054707200. Its totient is φ = 10003042183680.

The previous prime is 25064230306513. The next prime is 25064230306699. The reversal of 25064230306520 is 2560303246052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34273490 + ... + 34997150.

It is an arithmetic number, because the mean of its divisors is an integer number (883157104800).

Almost surely, 2^{25064230306520} is an apocalyptic number.

25064230306520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25064230306520 is an abundant number, since it is smaller than the sum of its proper divisors (31457824400680).

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

25064230306520 is a wasteful number, since it uses less digits than its factorization.

25064230306520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725628 (or 725624 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 25064230306520 in words is "twenty-five trillion, sixty-four billion, two hundred thirty million, three hundred six thousand, five hundred twenty".