53172331 has 2 divisors, whose sum is σ = 53172332. Its totient is φ = 53172330.

The previous prime is 53172313. The next prime is 53172349. The reversal of 53172331 is 13327135.

Together with previous prime (53172313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (53172313) and next prime (53172349).

It is a cyclic number.

It is not a de Polignac number, because 53172331 - 2¹⁷ = 53041259 is a prime.

It is a super-2 number, since 2×53172331² = 5654593567947122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53172296 and 53172305.

It is not a weakly prime, because it can be changed into another prime (53172131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26586165 + 26586166.

It is an arithmetic number, because the mean of its divisors is an integer number (26586166).

Almost surely, 2^53172331 is an apocalyptic number.

53172331 is a deficient number, since it is larger than the sum of its proper divisors (1).

53172331 is an equidigital number, since it uses as much as digits as its factorization.

53172331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 25.

The square root of 53172331 is about 7291.9360255010. The cubic root of 53172331 is about 376.0352572756.

Adding to 53172331 its reverse (13327135), we get a palindrome (66499466).

The spelling of 53172331 in words is "fifty-three million, one hundred seventy-two thousand, three hundred thirty-one".