25655553465 has 8 divisors (see below), whose sum is σ = 41048885568. Its totient is φ = 13682961840.

The previous prime is 25655553461. The next prime is 25655553493. The reversal of 25655553465 is 56435555652.

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

It is not a de Polignac number, because 25655553465 - 2² = 25655553461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25655553461) 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, 855185101 + ... + 855185130.

It is an arithmetic number, because the mean of its divisors is an integer number (5131110696).

Almost surely, 2^25655553465 is an apocalyptic number.

It is an amenable number.

25655553465 is a deficient number, since it is larger than the sum of its proper divisors (15393332103).

25655553465 is a wasteful number, since it uses less digits than its factorization.

25655553465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710370239.

The product of its digits is 13500000, while the sum is 51.

The spelling of 25655553465 in words is "twenty-five billion, six hundred fifty-five million, five hundred fifty-three thousand, four hundred sixty-five".