53671313 has 2 divisors, whose sum is σ = 53671314. Its totient is φ = 53671312.

The previous prime is 53671309. The next prime is 53671357. The reversal of 53671313 is 31317635.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 425104 = 7297^2 + 652^2 .

It is a cyclic number.

It is not a de Polignac number, because 53671313 - 2² = 53671309 is a prime.

It is not a weakly prime, because it can be changed into another prime (53671393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26835656 + 26835657.

It is an arithmetic number, because the mean of its divisors is an integer number (26835657).

Almost surely, 2^53671313 is an apocalyptic number.

It is an amenable number.

53671313 is a deficient number, since it is larger than the sum of its proper divisors (1).

53671313 is an equidigital number, since it uses as much as digits as its factorization.

53671313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 29.

The square root of 53671313 is about 7326.0707749789. The cubic root of 53671313 is about 377.2078654432.

Adding to 53671313 its reverse (31317635), we get a palindrome (84988948).

The spelling of 53671313 in words is "fifty-three million, six hundred seventy-one thousand, three hundred thirteen".