53251069 has 2 divisors, whose sum is σ = 53251070. Its totient is φ = 53251068.

The previous prime is 53251031. The next prime is 53251073. The reversal of 53251069 is 96015235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41602500 + 11648569 = 6450^2 + 3413^2 .

It is a cyclic number.

It is not a de Polignac number, because 53251069 - 2⁹ = 53250557 is a prime.

It is a super-2 number, since 2×53251069² = 5671352699285522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53251069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53251669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26625534 + 26625535.

It is an arithmetic number, because the mean of its divisors is an integer number (26625535).

Almost surely, 2^53251069 is an apocalyptic number.

It is an amenable number.

53251069 is a deficient number, since it is larger than the sum of its proper divisors (1).

53251069 is an equidigital number, since it uses as much as digits as its factorization.

53251069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 53251069 is about 7297.3330059687. Note that the first 3 decimals coincide. The cubic root of 53251069 is about 376.2207777071.

The spelling of 53251069 in words is "fifty-three million, two hundred fifty-one thousand, sixty-nine".