25490149093 has 8 divisors (see below), whose sum is σ = 25654670496. Its totient is φ = 25325888400.

The previous prime is 25490149051. The next prime is 25490149103. The reversal of 25490149093 is 39094109452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25490149093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490149493) 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, 132930 + ... + 262012.

It is an arithmetic number, because the mean of its divisors is an integer number (3206833812).

Almost surely, 2^25490149093 is an apocalyptic number.

It is an amenable number.

25490149093 is a deficient number, since it is larger than the sum of its proper divisors (164521403).

25490149093 is a wasteful number, since it uses less digits than its factorization.

25490149093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130355.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 25490149093 in words is "twenty-five billion, four hundred ninety million, one hundred forty-nine thousand, ninety-three".