53207351 has 2 divisors, whose sum is σ = 53207352. Its totient is φ = 53207350.

The previous prime is 53207317. The next prime is 53207359. The reversal of 53207351 is 15370235.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53207351 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53207351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53207359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26603675 + 26603676.

It is an arithmetic number, because the mean of its divisors is an integer number (26603676).

Almost surely, 2^53207351 is an apocalyptic number.

53207351 is a deficient number, since it is larger than the sum of its proper divisors (1).

53207351 is an equidigital number, since it uses as much as digits as its factorization.

53207351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 53207351 is about 7294.3369129757. The cubic root of 53207351 is about 376.1177930887.

Adding to 53207351 its reverse (15370235), we get a palindrome (68577586).

The spelling of 53207351 in words is "fifty-three million, two hundred seven thousand, three hundred fifty-one".