25121513134 has 8 divisors (see below), whose sum is σ = 37683143568. Its totient is φ = 12560465280.

The previous prime is 25121513129. The next prime is 25121513167. The reversal of 25121513134 is 43131512152.

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14067 + ... + 224590.

It is an arithmetic number, because the mean of its divisors is an integer number (4710392946).

Almost surely, 2^25121513134 is an apocalyptic number.

25121513134 is a deficient number, since it is larger than the sum of its proper divisors (12561630434).

25121513134 is a wasteful number, since it uses less digits than its factorization.

25121513134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291290.

The product of its digits is 3600, while the sum is 28.

The spelling of 25121513134 in words is "twenty-five billion, one hundred twenty-one million, five hundred thirteen thousand, one hundred thirty-four".