25375999780 has 24 divisors (see below), whose sum is σ = 53339775552. Its totient is φ = 10140842592.

The previous prime is 25375999763. The next prime is 25375999787. The reversal of 25375999780 is 8799957352.

It is not an unprimeable number, because it can be changed into a prime (25375999787) 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, 575542 + ... + 618061.

It is an arithmetic number, because the mean of its divisors is an integer number (2222490648).

Almost surely, 2^25375999780 is an apocalyptic number.

25375999780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25375999780 is an abundant number, since it is smaller than the sum of its proper divisors (27963775772).

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

25375999780 is a wasteful number, since it uses less digits than its factorization.

25375999780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194675 (or 1194673 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 64.

The spelling of 25375999780 in words is "twenty-five billion, three hundred seventy-five million, nine hundred ninety-nine thousand, seven hundred eighty".