30555053 has 4 divisors (see below), whose sum is σ = 30851808. Its totient is φ = 30258300.

The previous prime is 30555047. The next prime is 30555061. The reversal of 30555053 is 35055503.

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: 35055503 = 7 ⋅5007929.

It is a cyclic number.

It is not a de Polignac number, because 30555053 - 2⁴ = 30555037 is a prime.

It is a super-2 number, since 2×30555053² = 1867222527665618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555013) 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, 148223 + ... + 148428.

It is an arithmetic number, because the mean of its divisors is an integer number (7712952).

Almost surely, 2^30555053 is an apocalyptic number.

It is an amenable number.

30555053 is a deficient number, since it is larger than the sum of its proper divisors (296755).

30555053 is a wasteful number, since it uses less digits than its factorization.

30555053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296754.

The product of its (nonzero) digits is 5625, while the sum is 26.

The square root of 30555053 is about 5527.6625258784. The cubic root of 30555053 is about 312.6278619171.

The spelling of 30555053 in words is "thirty million, five hundred fifty-five thousand, fifty-three".