52540436 has 24 divisors (see below), whose sum is σ = 100382184. Its totient is φ = 23915520.

The previous prime is 52540429. The next prime is 52540457. The reversal of 52540436 is 63404525.

It can be written as a sum of positive squares in 4 ways, for example, as 988036 + 51552400 = 994^2 + 7180^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52540399 and 52540408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (4182591).

Almost surely, 2^52540436 is an apocalyptic number.

It is an amenable number.

52540436 is a deficient number, since it is larger than the sum of its proper divisors (47841748).

52540436 is a wasteful number, since it uses less digits than its factorization.

52540436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931 (or 13929 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 52540436 is about 7248.4781851089. The cubic root of 52540436 is about 374.5397280378.

The spelling of 52540436 in words is "fifty-two million, five hundred forty thousand, four hundred thirty-six".