54215100389 has 2 divisors, whose sum is σ = 54215100390. Its totient is φ = 54215100388.

The previous prime is 54215100229. The next prime is 54215100397. The reversal of 54215100389 is 98300151245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49093264900 + 5121835489 = 221570^2 + 71567^2 .

It is a cyclic number.

It is not a de Polignac number, because 54215100389 - 2²⁰ = 54214051813 is a prime.

It is a super-2 number, since 2×54215100389² (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 (54215103389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27107550194 + 27107550195.

It is an arithmetic number, because the mean of its divisors is an integer number (27107550195).

Almost surely, 2^54215100389 is an apocalyptic number.

It is an amenable number.

54215100389 is a deficient number, since it is larger than the sum of its proper divisors (1).

54215100389 is an equidigital number, since it uses as much as digits as its factorization.

54215100389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 54215100389 in words is "fifty-four billion, two hundred fifteen million, one hundred thousand, three hundred eighty-nine".