54102749 has 2 divisors, whose sum is σ = 54102750. Its totient is φ = 54102748.

The previous prime is 54102703. The next prime is 54102761. The reversal of 54102749 is 94720145.

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., 54096025 + 6724 = 7355^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 54102749 - 2²⁰ = 53054173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54102779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27051374 + 27051375.

It is an arithmetic number, because the mean of its divisors is an integer number (27051375).

Almost surely, 2^54102749 is an apocalyptic number.

It is an amenable number.

54102749 is a deficient number, since it is larger than the sum of its proper divisors (1).

54102749 is an equidigital number, since it uses as much as digits as its factorization.

54102749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 54102749 is about 7355.4570898075. The cubic root of 54102749 is about 378.2158957222.

The spelling of 54102749 in words is "fifty-four million, one hundred two thousand, seven hundred forty-nine".