30689053 has 2 divisors, whose sum is σ = 30689054. Its totient is φ = 30689052.

The previous prime is 30689023. The next prime is 30689081. The reversal of 30689053 is 35098603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28536964 + 2152089 = 5342^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 30689053 - 2¹³ = 30680861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30689003) 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 as a sum of consecutive naturals, namely, 15344526 + 15344527.

It is an arithmetic number, because the mean of its divisors is an integer number (15344527).

Almost surely, 2^30689053 is an apocalyptic number.

It is an amenable number.

30689053 is a deficient number, since it is larger than the sum of its proper divisors (1).

30689053 is an equidigital number, since it uses as much as digits as its factorization.

30689053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 30689053 is about 5539.7701215845. The cubic root of 30689053 is about 313.0842080691.

It can be divided in two parts, 3068 and 9053, that added together give a palindrome (12121).

The spelling of 30689053 in words is "thirty million, six hundred eighty-nine thousand, fifty-three".