25497193095780 has 192 divisors, whose sum is σ = 85363105443840. Its totient is φ = 5559832244736.

The previous prime is 25497193095727. The next prime is 25497193095793. The reversal of 25497193095780 is 8759039179452.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179002 + ... + 7143278.

It is an arithmetic number, because the mean of its divisors is an integer number (444599507520).

Almost surely, 2^{25497193095780} is an apocalyptic number.

25497193095780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25497193095780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42681552721920).

25497193095780 is an abundant number, since it is smaller than the sum of its proper divisors (59865912348060).

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

25497193095780 is a wasteful number, since it uses less digits than its factorization.

25497193095780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964698 (or 6964696 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 69.

The spelling of 25497193095780 in words is "twenty-five trillion, four hundred ninety-seven billion, one hundred ninety-three million, ninety-five thousand, seven hundred eighty".