53140331 has 2 divisors, whose sum is σ = 53140332. Its totient is φ = 53140330.

The previous prime is 53140289. The next prime is 53140337. The reversal of 53140331 is 13304135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53140331 is a prime.

It is a super-2 number, since 2×53140331² = 5647789557579122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53140337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26570165 + 26570166.

It is an arithmetic number, because the mean of its divisors is an integer number (26570166).

Almost surely, 2^53140331 is an apocalyptic number.

53140331 is a deficient number, since it is larger than the sum of its proper divisors (1).

53140331 is an equidigital number, since it uses as much as digits as its factorization.

53140331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 53140331 is about 7289.7414906154. The cubic root of 53140331 is about 375.9598073644.

Adding to 53140331 its reverse (13304135), we get a palindrome (66444466).

The spelling of 53140331 in words is "fifty-three million, one hundred forty thousand, three hundred thirty-one".