30280530253 has 8 divisors (see below), whose sum is σ = 30708531000. Its totient is φ = 29854480128.

The previous prime is 30280530221. The next prime is 30280530257. The reversal of 30280530253 is 35203508203.

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 30280524169 = 78^2 + 174013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30280530253 - 2⁵ = 30280530221 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 (30280530257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456376 + ... + 518497.

It is an arithmetic number, because the mean of its divisors is an integer number (3838566375).

Almost surely, 2^30280530253 is an apocalyptic number.

It is an amenable number.

30280530253 is a deficient number, since it is larger than the sum of its proper divisors (428000747).

30280530253 is an equidigital number, since it uses as much as digits as its factorization.

30280530253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975311.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 30280530253 in words is "thirty billion, two hundred eighty million, five hundred thirty thousand, two hundred fifty-three".