52400137 has 8 divisors (see below), whose sum is σ = 57272832. Its totient is φ = 47726400.

The previous prime is 52400087. The next prime is 52400149. The reversal of 52400137 is 73100425.

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

It is a cyclic number.

It is not a de Polignac number, because 52400137 - 2¹¹ = 52398089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52400167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49189 + ... + 50242.

It is an arithmetic number, because the mean of its divisors is an integer number (7159104).

Almost surely, 2^52400137 is an apocalyptic number.

It is an amenable number.

52400137 is a deficient number, since it is larger than the sum of its proper divisors (4872695).

52400137 is a wasteful number, since it uses less digits than its factorization.

52400137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99479.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 52400137 is about 7238.7938912501. The cubic root of 52400137 is about 374.2060523936.

The spelling of 52400137 in words is "fifty-two million, four hundred thousand, one hundred thirty-seven".