30155053 has 2 divisors, whose sum is σ = 30155054. Its totient is φ = 30155052.

The previous prime is 30155017. The next prime is 30155057. The reversal of 30155053 is 35055103.

It is a happy number.

30155053 is nontrivially palindromic in base 7.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23068809 + 7086244 = 4803^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 30155053 - 2¹³ = 30146861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30155057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15077526 + 15077527.

It is an arithmetic number, because the mean of its divisors is an integer number (15077527).

Almost surely, 2^30155053 is an apocalyptic number.

It is an amenable number.

30155053 is a deficient number, since it is larger than the sum of its proper divisors (1).

30155053 is an equidigital number, since it uses as much as digits as its factorization.

30155053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 30155053 is about 5491.3616708427. The cubic root of 30155053 is about 311.2576484521.

The spelling of 30155053 in words is "thirty million, one hundred fifty-five thousand, fifty-three".