52231636 has 6 divisors (see below), whose sum is σ = 91405370. Its totient is φ = 26115816.

The previous prime is 52231631. The next prime is 52231649. The reversal of 52231636 is 63613225.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 20196036 = 5660^2 + 4494^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52231631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6528951 + ... + 6528958.

Almost surely, 2^52231636 is an apocalyptic number.

It is an amenable number.

52231636 is a deficient number, since it is larger than the sum of its proper divisors (39173734).

52231636 is a wasteful number, since it uses less digits than its factorization.

52231636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13057913 (or 13057911 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 52231636 is about 7227.1457713263. The cubic root of 52231636 is about 373.8045152636.

It can be divided in two parts, 5223 and 1636, that added together give a cube (6859 = 19³).

The spelling of 52231636 in words is "fifty-two million, two hundred thirty-one thousand, six hundred thirty-six".