5632721429 has 2 divisors, whose sum is σ = 5632721430. Its totient is φ = 5632721428.

The previous prime is 5632721411. The next prime is 5632721453. The reversal of 5632721429 is 9241272365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5157394225 + 475327204 = 71815^2 + 21802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5632721429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5632721729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2816360714 + 2816360715.

It is an arithmetic number, because the mean of its divisors is an integer number (2816360715).

Almost surely, 2^5632721429 is an apocalyptic number.

It is an amenable number.

5632721429 is a deficient number, since it is larger than the sum of its proper divisors (1).

5632721429 is an equidigital number, since it uses as much as digits as its factorization.

5632721429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 5632721429 is about 75051.4585401243. The cubic root of 5632721429 is about 1779.2600371918.

The spelling of 5632721429 in words is "five billion, six hundred thirty-two million, seven hundred twenty-one thousand, four hundred twenty-nine".