25155047553 has 8 divisors (see below), whose sum is σ = 33543300000. Its totient is φ = 16768413408.

The previous prime is 25155047551. The next prime is 25155047579. The reversal of 25155047553 is 35574055152.

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

It is not a de Polignac number, because 25155047553 - 2¹ = 25155047551 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25155047551) 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, 367828 + ... + 430821.

It is an arithmetic number, because the mean of its divisors is an integer number (4192912500).

Almost surely, 2^25155047553 is an apocalyptic number.

It is an amenable number.

25155047553 is a deficient number, since it is larger than the sum of its proper divisors (8388252447).

25155047553 is a wasteful number, since it uses less digits than its factorization.

25155047553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809151.

The product of its (nonzero) digits is 525000, while the sum is 42.

The spelling of 25155047553 in words is "twenty-five billion, one hundred fifty-five million, forty-seven thousand, five hundred fifty-three".