25457076340 has 24 divisors (see below), whose sum is σ = 53880809472. Its totient is φ = 10102649760.

The previous prime is 25457076301. The next prime is 25457076347. The reversal of 25457076340 is 4367075452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25457076347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5008696 + ... + 5013775.

It is an arithmetic number, because the mean of its divisors is an integer number (2245033728).

Almost surely, 2^25457076340 is an apocalyptic number.

25457076340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25457076340 is an abundant number, since it is smaller than the sum of its proper divisors (28423733132).

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

25457076340 is a wasteful number, since it uses less digits than its factorization.

25457076340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022607 (or 10022605 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 25457076340 in words is "twenty-five billion, four hundred fifty-seven million, seventy-six thousand, three hundred forty".