36522421 has 12 divisors (see below), whose sum is σ = 39784932. Its totient is φ = 33511296.

The previous prime is 36522401. The next prime is 36522457. The reversal of 36522421 is 12422563.

36522421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1179396 + 35343025 = 1086^2 + 5945^2 .

It is not a de Polignac number, because 36522421 - 2¹³ = 36514229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36522401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32745 + ... + 33841.

It is an arithmetic number, because the mean of its divisors is an integer number (3315411).

Almost surely, 2^36522421 is an apocalyptic number.

It is an amenable number.

36522421 is a deficient number, since it is larger than the sum of its proper divisors (3262511).

36522421 is a wasteful number, since it uses less digits than its factorization.

36522421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1307 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 36522421 is about 6043.3782770897. The cubic root of 36522421 is about 331.7822791090.

Adding to 36522421 its reverse (12422563), we get a palindrome (48944984).

The spelling of 36522421 in words is "thirty-six million, five hundred twenty-two thousand, four hundred twenty-one".