53402237 has 8 divisors (see below), whose sum is σ = 61195200. Its totient is φ = 45650304.

The previous prime is 53402233. The next prime is 53402249. The reversal of 53402237 is 73220435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53402237 - 2² = 53402233 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 (53402231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7412 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (7649400).

Almost surely, 2^53402237 is an apocalyptic number.

It is an amenable number.

53402237 is a deficient number, since it is larger than the sum of its proper divisors (7792963).

53402237 is a wasteful number, since it uses less digits than its factorization.

53402237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53402237 is about 7307.6834222618. The cubic root of 53402237 is about 376.5764438757.

The spelling of 53402237 in words is "fifty-three million, four hundred two thousand, two hundred thirty-seven".