54665747251 has 16 divisors (see below), whose sum is σ = 56582449920. Its totient is φ = 52784514720.

The previous prime is 54665747209. The next prime is 54665747321. The reversal of 54665747251 is 15274756645.

It is a cyclic number.

It is not a de Polignac number, because 54665747251 - 2⁹ = 54665746739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54665744251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663836 + ... + 2684278.

It is an arithmetic number, because the mean of its divisors is an integer number (3536403120).

Almost surely, 2^54665747251 is an apocalyptic number.

54665747251 is a deficient number, since it is larger than the sum of its proper divisors (1916702669).

54665747251 is a wasteful number, since it uses less digits than its factorization.

54665747251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21306.

The product of its digits is 7056000, while the sum is 52.

The spelling of 54665747251 in words is "fifty-four billion, six hundred sixty-five million, seven hundred forty-seven thousand, two hundred fifty-one".