54845512597 has 4 divisors (see below), whose sum is σ = 54865612620. Its totient is φ = 54825412576.

The previous prime is 54845512571. The next prime is 54845512627. The reversal of 54845512597 is 79521554845.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79521554845 = 5 ⋅15904310969.

It can be written as a sum of positive squares in 2 ways, for example, as 54338407236 + 507105361 = 233106^2 + 22519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54845512597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54845512297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10045918 + ... + 10051375.

It is an arithmetic number, because the mean of its divisors is an integer number (13716403155).

Almost surely, 2^54845512597 is an apocalyptic number.

It is an amenable number.

54845512597 is a deficient number, since it is larger than the sum of its proper divisors (20100023).

54845512597 is a wasteful number, since it uses less digits than its factorization.

54845512597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20100022.

The product of its digits is 10080000, while the sum is 55.

The spelling of 54845512597 in words is "fifty-four billion, eight hundred forty-five million, five hundred twelve thousand, five hundred ninety-seven".