2537688493 has 2 divisors, whose sum is σ = 2537688494. Its totient is φ = 2537688492.

The previous prime is 2537688421. The next prime is 2537688499. The reversal of 2537688493 is 3948867352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2401196004 + 136492489 = 49002^2 + 11683^2 .

It is a cyclic number.

It is not a de Polignac number, because 2537688493 - 2⁹ = 2537687981 is a prime.

It is a super-2 number, since 2×2537688493² = 12879725775009222098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2537688499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268844246 + 1268844247.

It is an arithmetic number, because the mean of its divisors is an integer number (1268844247).

Almost surely, 2^2537688493 is an apocalyptic number.

It is an amenable number.

2537688493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2537688493 is an equidigital number, since it uses as much as digits as its factorization.

2537688493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The square root of 2537688493 is about 50375.4751143848. The cubic root of 2537688493 is about 1363.9949742607.

The spelling of 2537688493 in words is "two billion, five hundred thirty-seven million, six hundred eighty-eight thousand, four hundred ninety-three".