25500012451 has 8 divisors (see below), whose sum is σ = 26147415744. Its totient is φ = 24860008320.

The previous prime is 25500012449. The next prime is 25500012463. The reversal of 25500012451 is 15421000552.

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

It is not a de Polignac number, because 25500012451 - 2¹ = 25500012449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25500012431) 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, 1842811 + ... + 1856596.

It is an arithmetic number, because the mean of its divisors is an integer number (3268426968).

Almost surely, 2^25500012451 is an apocalyptic number.

25500012451 is a deficient number, since it is larger than the sum of its proper divisors (647403293).

25500012451 is a wasteful number, since it uses less digits than its factorization.

25500012451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699581.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 25500012451 in words is "twenty-five billion, five hundred million, twelve thousand, four hundred fifty-one".