54840623103157 has 4 divisors (see below), whose sum is σ = 54847046986956. Its totient is φ = 54834199219360.

The previous prime is 54840623103151. The next prime is 54840623103179. The reversal of 54840623103157 is 75130132604845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33794677795761 + 21045945307396 = 5813319^2 + 4587586^2 .

It is a cyclic number.

It is not a de Polignac number, because 54840623103157 - 2³¹ = 54838475619509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54840623103157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54840623103151) 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, 3211929094 + ... + 3211946167.

It is an arithmetic number, because the mean of its divisors is an integer number (13711761746739).

Almost surely, 2^{54840623103157} is an apocalyptic number.

It is an amenable number.

54840623103157 is a deficient number, since it is larger than the sum of its proper divisors (6423883799).

54840623103157 is an equidigital number, since it uses as much as digits as its factorization.

54840623103157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423883798.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 54840623103157 in words is "fifty-four trillion, eight hundred forty billion, six hundred twenty-three million, one hundred three thousand, one hundred fifty-seven".