25553364545 has 8 divisors (see below), whose sum is σ = 30884642880. Its totient is φ = 20295621360.

The previous prime is 25553364541. The next prime is 25553364583. The reversal of 25553364545 is 54546335552.

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

It is not a de Polignac number, because 25553364545 - 2² = 25553364541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25553364545.

It is not an unprimeable number, because it can be changed into a prime (25553364541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18383021 + ... + 18384410.

It is an arithmetic number, because the mean of its divisors is an integer number (3860580360).

Almost surely, 2^25553364545 is an apocalyptic number.

It is an amenable number.

25553364545 is a deficient number, since it is larger than the sum of its proper divisors (5331278335).

25553364545 is a wasteful number, since it uses less digits than its factorization.

25553364545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36767575.

The product of its digits is 5400000, while the sum is 47.

The spelling of 25553364545 in words is "twenty-five billion, five hundred fifty-three million, three hundred sixty-four thousand, five hundred forty-five".