52387636 has 24 divisors (see below), whose sum is σ = 110290880. Its totient is φ = 21269952.

The previous prime is 52387633. The next prime is 52387649. The reversal of 52387636 is 63678325.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52387633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48705 + ... + 49768.

Almost surely, 2^52387636 is an apocalyptic number.

It is an amenable number.

52387636 is an abundant number, since it is smaller than the sum of its proper divisors (57903244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52387636 is a wasteful number, since it uses less digits than its factorization.

52387636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98503 (or 98501 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 52387636 is about 7237.9303671699. The cubic root of 52387636 is about 374.1762921539.

The spelling of 52387636 in words is "fifty-two million, three hundred eighty-seven thousand, six hundred thirty-six".