53145311 has 2 divisors, whose sum is σ = 53145312. Its totient is φ = 53145310.

The previous prime is 53145293. The next prime is 53145319. The reversal of 53145311 is 11354135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53145311 is a prime.

It is a Sophie Germain prime.

It is equal to p_3178220 and since 53145311 and 3178220 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53145319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26572655 + 26572656.

It is an arithmetic number, because the mean of its divisors is an integer number (26572656).

Almost surely, 2^53145311 is an apocalyptic number.

53145311 is a deficient number, since it is larger than the sum of its proper divisors (1).

53145311 is an equidigital number, since it uses as much as digits as its factorization.

53145311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 53145311 is about 7290.0830585117. The cubic root of 53145311 is about 375.9715512466.

Adding to 53145311 its reverse (11354135), we get a palindrome (64499446).

The spelling of 53145311 in words is "fifty-three million, one hundred forty-five thousand, three hundred eleven".