54235381 has 2 divisors, whose sum is σ = 54235382. Its totient is φ = 54235380.

The previous prime is 54235339. The next prime is 54235387. The reversal of 54235381 is 18353245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 872356 = 7305^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 54235381 - 2¹³ = 54227189 is a prime.

It is a super-2 number, since 2×54235381² = 5882953104430322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54235387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27117690 + 27117691.

It is an arithmetic number, because the mean of its divisors is an integer number (27117691).

Almost surely, 2^54235381 is an apocalyptic number.

It is an amenable number.

54235381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54235381 is an equidigital number, since it uses as much as digits as its factorization.

54235381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 54235381 is about 7364.4674620776. The cubic root of 54235381 is about 378.5247068618.

The spelling of 54235381 in words is "fifty-four million, two hundred thirty-five thousand, three hundred eighty-one".