2536051621 has 2 divisors, whose sum is σ = 2536051622. Its totient is φ = 2536051620.

The previous prime is 2536051603. The next prime is 2536051633. The reversal of 2536051621 is 1261506352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493004900 + 43046721 = 49930^2 + 6561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536051621 - 2¹¹ = 2536049573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2536057621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268025810 + 1268025811.

It is an arithmetic number, because the mean of its divisors is an integer number (1268025811).

Almost surely, 2^2536051621 is an apocalyptic number.

It is an amenable number.

2536051621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2536051621 is an equidigital number, since it uses as much as digits as its factorization.

2536051621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2536051621 is about 50359.2257784013. The cubic root of 2536051621 is about 1363.7016409897.

Adding to 2536051621 its reverse (1261506352), we get a palindrome (3797557973).

The spelling of 2536051621 in words is "two billion, five hundred thirty-six million, fifty-one thousand, six hundred twenty-one".