53729749 has 2 divisors, whose sum is σ = 53729750. Its totient is φ = 53729748.

The previous prime is 53729743. The next prime is 53729759. The reversal of 53729749 is 94792735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 1456849 = 7230^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 53729749 - 2⁹ = 53729237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53729699 and 53729708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53729743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26864874 + 26864875.

It is an arithmetic number, because the mean of its divisors is an integer number (26864875).

Almost surely, 2^53729749 is an apocalyptic number.

It is an amenable number.

53729749 is a deficient number, since it is larger than the sum of its proper divisors (1).

53729749 is an equidigital number, since it uses as much as digits as its factorization.

53729749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 46.

The square root of 53729749 is about 7330.0579124588. The cubic root of 53729749 is about 377.3447139919.

The spelling of 53729749 in words is "fifty-three million, seven hundred twenty-nine thousand, seven hundred forty-nine".