54972348987 has 4 divisors (see below), whose sum is σ = 73296465320. Its totient is φ = 36648232656.

The previous prime is 54972348961. The next prime is 54972349037. The reversal of 54972348987 is 78984327945.

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

It is not a de Polignac number, because 54972348987 - 2⁶ = 54972348923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54972348947) 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, 9162058162 + ... + 9162058167.

It is an arithmetic number, because the mean of its divisors is an integer number (18324116330).

Almost surely, 2^54972348987 is an apocalyptic number.

54972348987 is a deficient number, since it is larger than the sum of its proper divisors (18324116333).

54972348987 is a wasteful number, since it uses less digits than its factorization.

54972348987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324116332.

The product of its digits is 121927680, while the sum is 66.

It can be divided in two parts, 5497234 and 8987, that added together give a triangular number (5506221 = T₃₃₁₈).

The spelling of 54972348987 in words is "fifty-four billion, nine hundred seventy-two million, three hundred forty-eight thousand, nine hundred eighty-seven".