53057537 has 8 divisors (see below), whose sum is σ = 57198120. Its totient is φ = 48925440.

The previous prime is 53057531. The next prime is 53057539. The reversal of 53057537 is 73575035.

It can be written as a sum of positive squares in 4 ways, for example, as 190096 + 52867441 = 436^2 + 7271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53057537 - 2⁸ = 53057281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53057497 and 53057506.

It is not an unprimeable number, because it can be changed into a prime (53057531) 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, 17987 + ... + 20727.

It is an arithmetic number, because the mean of its divisors is an integer number (7149765).

Almost surely, 2^53057537 is an apocalyptic number.

It is an amenable number.

53057537 is a deficient number, since it is larger than the sum of its proper divisors (4140583).

53057537 is a wasteful number, since it uses less digits than its factorization.

53057537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243.

The product of its (nonzero) digits is 55125, while the sum is 35.

The square root of 53057537 is about 7284.0604747627. The cubic root of 53057537 is about 375.7644541968.

It can be divided in two parts, 5 and 3057537, that multiplied together give a triangular number (15287685 = T₅₅₂₉).

The spelling of 53057537 in words is "fifty-three million, fifty-seven thousand, five hundred thirty-seven".