349520053 has 4 divisors (see below), whose sum is σ = 350982720. Its totient is φ = 348057388.

The previous prime is 349520027. The next prime is 349520063. The reversal of 349520053 is 350025943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350025943 = 607 ⋅576649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349520053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349519997 and 349520024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349520063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730975 + ... + 731452.

It is an arithmetic number, because the mean of its divisors is an integer number (87745680).

Almost surely, 2^349520053 is an apocalyptic number.

It is an amenable number.

349520053 is a deficient number, since it is larger than the sum of its proper divisors (1462667).

349520053 is a wasteful number, since it uses less digits than its factorization.

349520053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462666.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 349520053 is about 18695.4554103397. The cubic root of 349520053 is about 704.4075991969.

Adding to 349520053 its reverse (350025943), we get a palindrome (699545996).

The spelling of 349520053 in words is "three hundred forty-nine million, five hundred twenty thousand, fifty-three".