30908053 has 4 divisors (see below), whose sum is σ = 33717888. Its totient is φ = 28098220.

The previous prime is 30908051. The next prime is 30908071. The reversal of 30908053 is 35080903.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 30908053 - 2¹ = 30908051 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 (30908051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404901 + ... + 1404922.

It is an arithmetic number, because the mean of its divisors is an integer number (8429472).

Almost surely, 2^30908053 is an apocalyptic number.

It is an amenable number.

30908053 is a deficient number, since it is larger than the sum of its proper divisors (2809835).

30908053 is a wasteful number, since it uses less digits than its factorization.

30908053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809834.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 30908053 is about 5559.5011466857. The cubic root of 30908053 is about 313.8271764559.

Adding to 30908053 its reverse (35080903), we get a palindrome (65988956).

The spelling of 30908053 in words is "thirty million, nine hundred eight thousand, fifty-three".