53206137 has 24 divisors (see below), whose sum is σ = 83516160. Its totient is φ = 32516640.

The previous prime is 53206133. The next prime is 53206157. The reversal of 53206137 is 73160235.

It is a happy number.

It is not a de Polignac number, because 53206137 - 2² = 53206133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53206137.

It is not an unprimeable number, because it can be changed into a prime (53206133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283 + ... + 10319.

It is an arithmetic number, because the mean of its divisors is an integer number (3479840).

Almost surely, 2^53206137 is an apocalyptic number.

53206137 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

53206137 is a deficient number, since it is larger than the sum of its proper divisors (30310023).

53206137 is a wasteful number, since it uses less digits than its factorization.

53206137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093 (or 10090 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 53206137 is about 7294.2536972606. The cubic root of 53206137 is about 376.1149325161.

The spelling of 53206137 in words is "fifty-three million, two hundred six thousand, one hundred thirty-seven".