53323137 has 32 divisors (see below), whose sum is σ = 90675200. Its totient is φ = 30338064.

The previous prime is 53323133. The next prime is 53323147. The reversal of 53323137 is 73132335.

It is not a de Polignac number, because 53323137 - 2² = 53323133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 53323137.

It is not an unprimeable number, because it can be changed into a prime (53323133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57564 + ... + 58482.

It is an arithmetic number, because the mean of its divisors is an integer number (2833600).

Almost surely, 2^53323137 is an apocalyptic number.

It is an amenable number.

53323137 is a deficient number, since it is larger than the sum of its proper divisors (37352063).

53323137 is a wasteful number, since it uses less digits than its factorization.

53323137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1236 counting only the distinct ones).

The product of its digits is 5670, while the sum is 27.

The square root of 53323137 is about 7302.2693048120. The cubic root of 53323137 is about 376.3904222310.

The spelling of 53323137 in words is "fifty-three million, three hundred twenty-three thousand, one hundred thirty-seven".