5634612521 has 2 divisors, whose sum is σ = 5634612522. Its totient is φ = 5634612520.

The previous prime is 5634612509. The next prime is 5634612523. The reversal of 5634612521 is 1252164365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5570532496 + 64080025 = 74636^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 5634612521 - 2¹⁸ = 5634350377 is a prime.

Together with 5634612523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5634612523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2817306260 + 2817306261.

It is an arithmetic number, because the mean of its divisors is an integer number (2817306261).

Almost surely, 2^5634612521 is an apocalyptic number.

It is an amenable number.

5634612521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5634612521 is an equidigital number, since it uses as much as digits as its factorization.

5634612521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 5634612521 is about 75064.0561187577. The cubic root of 5634612521 is about 1779.4591338441.

Adding to 5634612521 its reverse (1252164365), we get a palindrome (6886776886).

It can be divided in two parts, 56346 and 12521, that multiplied together give a triangular number (705508266 = T₃₇₅₆₃).

The spelling of 5634612521 in words is "five billion, six hundred thirty-four million, six hundred twelve thousand, five hundred twenty-one".