57236845 has 4 divisors (see below), whose sum is σ = 68684220. Its totient is φ = 45789472.

The previous prime is 57236833. The next prime is 57236869. The reversal of 57236845 is 54863275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14032516 + 43204329 = 3746^2 + 6573^2 .

It is a cyclic number.

It is not a de Polignac number, because 57236845 - 2²³ = 48848237 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 57236798 and 57236807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5723680 + ... + 5723689.

It is an arithmetic number, because the mean of its divisors is an integer number (17171055).

Almost surely, 2^57236845 is an apocalyptic number.

It is an amenable number.

57236845 is a deficient number, since it is larger than the sum of its proper divisors (11447375).

57236845 is a wasteful number, since it uses less digits than its factorization.

57236845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447374.

The product of its digits is 201600, while the sum is 40.

The square root of 57236845 is about 7565.5036183984. The cubic root of 57236845 is about 385.3824164484.

It can be divided in two parts, 57236 and 845, that added together give a square (58081 = 241²).

The spelling of 57236845 in words is "fifty-seven million, two hundred thirty-six thousand, eight hundred forty-five".