52661436 has 48 divisors (see below), whose sum is σ = 129282048. Its totient is φ = 16660800.

The previous prime is 52661417. The next prime is 52661437. The reversal of 52661436 is 63416625.

52661436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52661397 and 52661406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52661437) 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 15 ways as a sum of consecutive naturals, for example, 18381 + ... + 21051.

It is an arithmetic number, because the mean of its divisors is an integer number (2693376).

Almost surely, 2^52661436 is an apocalyptic number.

It is an amenable number.

52661436 is an abundant number, since it is smaller than the sum of its proper divisors (76620612).

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

52661436 is a wasteful number, since it uses less digits than its factorization.

52661436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2760 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 52661436 is about 7256.8199646953. The cubic root of 52661436 is about 374.8270277828.

The spelling of 52661436 in words is "fifty-two million, six hundred sixty-one thousand, four hundred thirty-six".