54057749 has 2 divisors, whose sum is σ = 54057750. Its totient is φ = 54057748.

The previous prime is 54057743. The next prime is 54057761. The reversal of 54057749 is 94775045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53027524 + 1030225 = 7282^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 54057749 - 2²⁴ = 37280533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54057743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27028874 + 27028875.

It is an arithmetic number, because the mean of its divisors is an integer number (27028875).

Almost surely, 2^54057749 is an apocalyptic number.

It is an amenable number.

54057749 is a deficient number, since it is larger than the sum of its proper divisors (1).

54057749 is an equidigital number, since it uses as much as digits as its factorization.

54057749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 54057749 is about 7352.3975001356. The cubic root of 54057749 is about 378.1110061893. Note that the first 3 decimals are identical.

The spelling of 54057749 in words is "fifty-four million, fifty-seven thousand, seven hundred forty-nine".