51102253 has 2 divisors, whose sum is σ = 51102254. Its totient is φ = 51102252.

The previous prime is 51102223. The next prime is 51102281. The reversal of 51102253 is 35220115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 14160169 = 6078^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 51102253 - 2¹⁷ = 50971181 is a prime.

It is a super-2 number, since 2×51102253² = 5222880523352018, 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 51102253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51102203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25551126 + 25551127.

It is an arithmetic number, because the mean of its divisors is an integer number (25551127).

Almost surely, 2^51102253 is an apocalyptic number.

It is an amenable number.

51102253 is a deficient number, since it is larger than the sum of its proper divisors (1).

51102253 is an equidigital number, since it uses as much as digits as its factorization.

51102253 is an evil number, because the sum of its binary digits is even.

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

The square root of 51102253 is about 7148.5839856576. The cubic root of 51102253 is about 371.0906533484.

Adding to 51102253 its reverse (35220115), we get a palindrome (86322368).

The spelling of 51102253 in words is "fifty-one million, one hundred two thousand, two hundred fifty-three".