52736436 has 18 divisors (see below), whose sum is σ = 133306082. Its totient is φ = 17578800.

The previous prime is 52736423. The next prime is 52736449. The reversal of 52736436 is 63463725.

52736436 is a `hidden beast` number, since 5 + 2 + 7 + 3 + 643 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (52736423) and next prime (52736449).

It can be written as a sum of positive squares in only one way, i.e., 51926436 + 810000 = 7206^2 + 900^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×52736436² = 5562263363964192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1464901 = 52736436 / (5 + 2 + 7 + 3 + 6 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 52736436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732415 + ... + 732486.

Almost surely, 2^52736436 is an apocalyptic number.

It is an amenable number.

52736436 is an abundant number, since it is smaller than the sum of its proper divisors (80569646).

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

52736436 is a wasteful number, since it uses less digits than its factorization.

52736436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464911 (or 1464906 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 52736436 is about 7261.9856788622. The cubic root of 52736436 is about 375.0048852697.

It can be divided in two parts, 527 and 36436, that added together give a palindrome (36963).

The spelling of 52736436 in words is "fifty-two million, seven hundred thirty-six thousand, four hundred thirty-six".