30709053 has 6 divisors (see below), whose sum is σ = 44357534. Its totient is φ = 20472696.

The previous prime is 30709039. The next prime is 30709067. The reversal of 30709053 is 35090703.

It is an interprime number because it is at equal distance from previous prime (30709039) and next prime (30709067).

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 700569 = 5478^2 + 837^2 .

It is not a de Polignac number, because 30709053 - 2⁶ = 30708989 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 (30709033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1706050 + ... + 1706067.

Almost surely, 2^30709053 is an apocalyptic number.

It is an amenable number.

30709053 is a deficient number, since it is larger than the sum of its proper divisors (13648481).

30709053 is a wasteful number, since it uses less digits than its factorization.

30709053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412123 (or 3412120 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 30709053 is about 5541.5749566346. The cubic root of 30709053 is about 313.1522054362.

Adding to 30709053 its reverse (35090703), we get a palindrome (65799756).

The spelling of 30709053 in words is "thirty million, seven hundred nine thousand, fifty-three".