5536737421 has 2 divisors, whose sum is σ = 5536737422. Its totient is φ = 5536737420.

The previous prime is 5536737347. The next prime is 5536737433. The reversal of 5536737421 is 1247376355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2880468900 + 2656268521 = 53670^2 + 51539^2 .

It is a cyclic number.

It is not a de Polignac number, because 5536737421 - 2¹⁷ = 5536606349 is a prime.

It is a super-2 number, since 2×5536737421² = 61310922538203462482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5536737121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768368710 + 2768368711.

It is an arithmetic number, because the mean of its divisors is an integer number (2768368711).

Almost surely, 2^5536737421 is an apocalyptic number.

It is an amenable number.

5536737421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5536737421 is an equidigital number, since it uses as much as digits as its factorization.

5536737421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 43.

The square root of 5536737421 is about 74409.2562857606. The cubic root of 5536737421 is about 1769.0956279858.

The spelling of 5536737421 in words is "five billion, five hundred thirty-six million, seven hundred thirty-seven thousand, four hundred twenty-one".