54372551381 has 2 divisors, whose sum is σ = 54372551382. Its totient is φ = 54372551380.

The previous prime is 54372551347. The next prime is 54372551413. The reversal of 54372551381 is 18315527345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53103054481 + 1269496900 = 230441^2 + 35630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54372551381 is a prime.

It is a super-2 number, since 2×54372551381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54372551581) 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 as a sum of consecutive naturals, namely, 27186275690 + 27186275691.

It is an arithmetic number, because the mean of its divisors is an integer number (27186275691).

Almost surely, 2^54372551381 is an apocalyptic number.

It is an amenable number.

54372551381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54372551381 is an equidigital number, since it uses as much as digits as its factorization.

54372551381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The spelling of 54372551381 in words is "fifty-four billion, three hundred seventy-two million, five hundred fifty-one thousand, three hundred eighty-one".