54691917825 has 24 divisors (see below), whose sum is σ = 90675892800. Its totient is φ = 29087757760.

The previous prime is 54691917821. The next prime is 54691917871. The reversal of 54691917825 is 52871919645.

It is a happy number.

It is not a de Polignac number, because 54691917825 - 2² = 54691917821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54691917821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 988710 + ... + 1042559.

It is an arithmetic number, because the mean of its divisors is an integer number (3778162200).

Almost surely, 2^54691917825 is an apocalyptic number.

It is an amenable number.

54691917825 is a deficient number, since it is larger than the sum of its proper divisors (35983974975).

54691917825 is a wasteful number, since it uses less digits than its factorization.

54691917825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031641 (or 2031636 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The spelling of 54691917825 in words is "fifty-four billion, six hundred ninety-one million, nine hundred seventeen thousand, eight hundred twenty-five".