2113255537 has 2 divisors, whose sum is σ = 2113255538. Its totient is φ = 2113255536.

The previous prime is 2113255517. The next prime is 2113255577. The reversal of 2113255537 is 7355523112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1995944976 + 117310561 = 44676^2 + 10831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113255537 - 2¹⁹ = 2112731249 is a prime.

It is a super-2 number, since 2×2113255537² = 8931697929322316738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2113255517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056627768 + 1056627769.

It is an arithmetic number, because the mean of its divisors is an integer number (1056627769).

Almost surely, 2^2113255537 is an apocalyptic number.

It is an amenable number.

2113255537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113255537 is an equidigital number, since it uses as much as digits as its factorization.

2113255537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 34.

The square root of 2113255537 is about 45970.1592013776. The cubic root of 2113255537 is about 1283.2679226720.

Adding to 2113255537 its reverse (7355523112), we get a palindrome (9468778649).

The spelling of 2113255537 in words is "two billion, one hundred thirteen million, two hundred fifty-five thousand, five hundred thirty-seven".