25027436990 has 16 divisors (see below), whose sum is σ = 45124354800. Its totient is φ = 9994315200.

The previous prime is 25027436989. The next prime is 25027436999. The reversal of 25027436990 is 9963472052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25027436999) 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, 2076140 + ... + 2088159.

It is an arithmetic number, because the mean of its divisors is an integer number (2820272175).

Almost surely, 2^25027436990 is an apocalyptic number.

25027436990 is a deficient number, since it is larger than the sum of its proper divisors (20096917810).

25027436990 is a wasteful number, since it uses less digits than its factorization.

25027436990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164907.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 25027436990 in words is "twenty-five billion, twenty-seven million, four hundred thirty-six thousand, nine hundred ninety".