53731549 has 2 divisors, whose sum is σ = 53731550. Its totient is φ = 53731548.

The previous prime is 53731529. The next prime is 53731571. The reversal of 53731549 is 94513735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35940025 + 17791524 = 5995^2 + 4218^2 .

It is a cyclic number.

It is not a de Polignac number, because 53731549 - 2⁷ = 53731421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53731529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26865774 + 26865775.

It is an arithmetic number, because the mean of its divisors is an integer number (26865775).

Almost surely, 2^53731549 is an apocalyptic number.

It is an amenable number.

53731549 is a deficient number, since it is larger than the sum of its proper divisors (1).

53731549 is an equidigital number, since it uses as much as digits as its factorization.

53731549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 53731549 is about 7330.1806935436. The cubic root of 53731549 is about 377.3489277525.

The spelling of 53731549 in words is "fifty-three million, seven hundred thirty-one thousand, five hundred forty-nine".