54215783 has 2 divisors, whose sum is σ = 54215784. Its totient is φ = 54215782.

The previous prime is 54215773. The next prime is 54215929. The reversal of 54215783 is 38751245.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54215783 - 2⁶ = 54215719 is a prime.

It is a super-2 number, since 2×54215783² = 5878702252606178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54215743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27107891 + 27107892.

It is an arithmetic number, because the mean of its divisors is an integer number (27107892).

Almost surely, 2^54215783 is an apocalyptic number.

54215783 is a deficient number, since it is larger than the sum of its proper divisors (1).

54215783 is an equidigital number, since it uses as much as digits as its factorization.

54215783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 54215783 is about 7363.1367636355. The cubic root of 54215783 is about 378.4791079632.

The spelling of 54215783 in words is "fifty-four million, two hundred fifteen thousand, seven hundred eighty-three".