39820053 has 16 divisors (see below), whose sum is σ = 65346176. Its totient is φ = 21003840.

The previous prime is 39820051. The next prime is 39820057. The reversal of 39820053 is 35002893.

It is a happy number.

It is not a de Polignac number, because 39820053 - 2¹ = 39820051 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39820053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39820051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72658 + ... + 73203.

It is an arithmetic number, because the mean of its divisors is an integer number (4084136).

Almost surely, 2^39820053 is an apocalyptic number.

It is an amenable number.

39820053 is a deficient number, since it is larger than the sum of its proper divisors (25526123).

39820053 is a wasteful number, since it uses less digits than its factorization.

39820053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145884.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 39820053 is about 6310.3132251894. The cubic root of 39820053 is about 341.4815766353.

The spelling of 39820053 in words is "thirty-nine million, eight hundred twenty thousand, fifty-three".