53120251 has 2 divisors, whose sum is σ = 53120252. Its totient is φ = 53120250.

The previous prime is 53120231. The next prime is 53120303. The reversal of 53120251 is 15202135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53120251 - 2²¹ = 51023099 is a prime.

It is a super-2 number, since 2×53120251² = 5643522132606002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53120231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560125 + 26560126.

It is an arithmetic number, because the mean of its divisors is an integer number (26560126).

Almost surely, 2^53120251 is an apocalyptic number.

53120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53120251 is an equidigital number, since it uses as much as digits as its factorization.

53120251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 53120251 is about 7288.3640825634. The cubic root of 53120251 is about 375.9124470772.

Adding to 53120251 its reverse (15202135), we get a palindrome (68322386).

The spelling of 53120251 in words is "fifty-three million, one hundred twenty thousand, two hundred fifty-one".