53644057 has 2 divisors, whose sum is σ = 53644058. Its totient is φ = 53644056.

The previous prime is 53644037. The next prime is 53644067. The reversal of 53644057 is 75044635.

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., 48149721 + 5494336 = 6939^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 53644057 - 2¹⁵ = 53611289 is a prime.

It is not a weakly prime, because it can be changed into another prime (53644037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26822028 + 26822029.

It is an arithmetic number, because the mean of its divisors is an integer number (26822029).

Almost surely, 2^53644057 is an apocalyptic number.

It is an amenable number.

53644057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53644057 is an equidigital number, since it uses as much as digits as its factorization.

53644057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 53644057 is about 7324.2103328618. The cubic root of 53644057 is about 377.1440019137.

The spelling of 53644057 in words is "fifty-three million, six hundred forty-four thousand, fifty-seven".