5211312061 has 2 divisors, whose sum is σ = 5211312062. Its totient is φ = 5211312060.

The previous prime is 5211312047. The next prime is 5211312109. The reversal of 5211312061 is 1602131125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3041522500 + 2169789561 = 55150^2 + 46581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5211312061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5211312961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605656030 + 2605656031.

It is an arithmetic number, because the mean of its divisors is an integer number (2605656031).

Almost surely, 2^5211312061 is an apocalyptic number.

It is an amenable number.

5211312061 is a deficient number, since it is larger than the sum of its proper divisors (1).

5211312061 is an equidigital number, since it uses as much as digits as its factorization.

5211312061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 5211312061 is about 72189.4179294999. The cubic root of 5211312061 is about 1733.7335764052.

Adding to 5211312061 its reverse (1602131125), we get a palindrome (6813443186).

The spelling of 5211312061 in words is "five billion, two hundred eleven million, three hundred twelve thousand, sixty-one".