25903957290 has 32 divisors (see below), whose sum is σ = 63021139776. Its totient is φ = 6813095040.

The previous prime is 25903957279. The next prime is 25903957297. The reversal of 25903957290 is 9275930952.

It is not an unprimeable number, because it can be changed into a prime (25903957297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5911956 + ... + 5916335.

It is an arithmetic number, because the mean of its divisors is an integer number (1969410618).

Almost surely, 2^25903957290 is an apocalyptic number.

25903957290 is an abundant number, since it is smaller than the sum of its proper divisors (37117182486).

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

25903957290 is a wasteful number, since it uses less digits than its factorization.

25903957290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828374.

The product of its (nonzero) digits is 1530900, while the sum is 51.

The spelling of 25903957290 in words is "twenty-five billion, nine hundred three million, nine hundred fifty-seven thousand, two hundred ninety".