25015089494 has 8 divisors (see below), whose sum is σ = 38437820568. Its totient is φ = 12202482640.

The previous prime is 25015089457. The next prime is 25015089511. The reversal of 25015089494 is 49498051052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152530952 + ... + 152531115.

It is an arithmetic number, because the mean of its divisors is an integer number (4804727571).

Almost surely, 2^25015089494 is an apocalyptic number.

25015089494 is a deficient number, since it is larger than the sum of its proper divisors (13422731074).

25015089494 is a wasteful number, since it uses less digits than its factorization.

25015089494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305062110.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 25015089494 in words is "twenty-five billion, fifteen million, eighty-nine thousand, four hundred ninety-four".