25526790515040 has 48 divisors (see below), whose sum is σ = 80409390123888. Its totient is φ = 6807144137216.

The previous prime is 25526790514969. The next prime is 25526790515059. The reversal of 25526790515040 is 4051509762552.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×25526790515040² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 26590406307 + ... + 26590407266.

It is an arithmetic number, because the mean of its divisors is an integer number (1675195627581).

Almost surely, 2^{25526790515040} is an apocalyptic number.

25526790515040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25526790515040 is an abundant number, since it is smaller than the sum of its proper divisors (54882599608848).

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

25526790515040 is a wasteful number, since it uses less digits than its factorization.

25526790515040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53180813591 (or 53180813583 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 51.

The spelling of 25526790515040 in words is "twenty-five trillion, five hundred twenty-six billion, seven hundred ninety million, five hundred fifteen thousand, forty".