53201537 has 4 divisors (see below), whose sum is σ = 53217216. Its totient is φ = 53185860.

The previous prime is 53201527. The next prime is 53201557. The reversal of 53201537 is 73510235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73510235 = 5 ⋅14702047.

It is a cyclic number.

It is not a de Polignac number, because 53201537 - 2⁴ = 53201521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53201527) 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, 389 + ... + 10322.

It is an arithmetic number, because the mean of its divisors is an integer number (13304304).

Almost surely, 2^53201537 is an apocalyptic number.

It is an amenable number.

53201537 is a deficient number, since it is larger than the sum of its proper divisors (15679).

53201537 is a wasteful number, since it uses less digits than its factorization.

53201537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15678.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 53201537 is about 7293.9383737457. The cubic root of 53201537 is about 376.1040930488.

The spelling of 53201537 in words is "fifty-three million, two hundred one thousand, five hundred thirty-seven".