53306357 has 4 divisors (see below), whose sum is σ = 57406860. Its totient is φ = 49205856.

The previous prime is 53306327. The next prime is 53306377. The reversal of 53306357 is 75360335.

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 28793956 + 24512401 = 5366^2 + 4951^2 .

It is a cyclic number.

It is not a de Polignac number, because 53306357 - 2⁶ = 53306293 is a prime.

It is a super-2 number, since 2×53306357² = 5683135393222898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53306327) 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, 2050232 + ... + 2050257.

It is an arithmetic number, because the mean of its divisors is an integer number (14351715).

Almost surely, 2^53306357 is an apocalyptic number.

It is an amenable number.

53306357 is a deficient number, since it is larger than the sum of its proper divisors (4100503).

53306357 is a wasteful number, since it uses less digits than its factorization.

53306357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100502.

The product of its (nonzero) digits is 28350, while the sum is 32.

The square root of 53306357 is about 7301.1202565086. The cubic root of 53306357 is about 376.3509365952.

The spelling of 53306357 in words is "fifty-three million, three hundred six thousand, three hundred fifty-seven".