30068253 has 10 divisors (see below), whose sum is σ = 44916894. Its totient is φ = 20045448.

The previous prime is 30068251. The next prime is 30068281. The reversal of 30068253 is 35286003.

It can be written as a sum of positive squares in only one way, i.e., 19686969 + 10381284 = 4437^2 + 3222^2 .

It is not a de Polignac number, because 30068253 - 2¹ = 30068251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 185526 + ... + 185687.

Almost surely, 2^30068253 is an apocalyptic number.

It is an amenable number.

30068253 is a deficient number, since it is larger than the sum of its proper divisors (14848641).

30068253 is an equidigital number, since it uses as much as digits as its factorization.

30068253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371225 (or 371216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30068253 is about 5483.4526532104. The cubic root of 30068253 is about 310.9587142736.

The spelling of 30068253 in words is "thirty million, sixty-eight thousand, two hundred fifty-three".