53570357 has 4 divisors (see below), whose sum is σ = 53708460. Its totient is φ = 53432256.

The previous prime is 53570353. The next prime is 53570359. The reversal of 53570357 is 75307535.

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 10023556 + 43546801 = 3166^2 + 6599^2 .

It is a cyclic number.

It is not a de Polignac number, because 53570357 - 2² = 53570353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53570353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68468 + ... + 69245.

It is an arithmetic number, because the mean of its divisors is an integer number (13427115).

Almost surely, 2^53570357 is an apocalyptic number.

It is an amenable number.

53570357 is a deficient number, since it is larger than the sum of its proper divisors (138103).

53570357 is a wasteful number, since it uses less digits than its factorization.

53570357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138102.

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

The square root of 53570357 is about 7319.1773444835. The cubic root of 53570357 is about 376.9712070546.

The spelling of 53570357 in words is "fifty-three million, five hundred seventy thousand, three hundred fifty-seven".