25066357456 has 80 divisors (see below), whose sum is σ = 58020413440. Its totient is φ = 10264475520.

The previous prime is 25066357441. The next prime is 25066357499. The reversal of 25066357456 is 65475366052.

It is a super-2 number, since 2×25066357456² (a number of 22 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 15 ways as a sum of consecutive naturals, for example, 228595 + ... + 319981.

It is an arithmetic number, because the mean of its divisors is an integer number (725255168).

Almost surely, 2^25066357456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25066357456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29010206720).

25066357456 is an abundant number, since it is smaller than the sum of its proper divisors (32954055984).

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

25066357456 is a wasteful number, since it uses less digits than its factorization.

25066357456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91512 (or 91506 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 25066357456 in words is "twenty-five billion, sixty-six million, three hundred fifty-seven thousand, four hundred fifty-six".