30520057253 has 16 divisors (see below), whose sum is σ = 36441624576. Its totient is φ = 24991694640.

The previous prime is 30520057247. The next prime is 30520057259. The reversal of 30520057253 is 35275002503.

It is an interprime number because it is at equal distance from previous prime (30520057247) and next prime (30520057259).

It is a cyclic number.

It is not a de Polignac number, because 30520057253 - 2⁴ = 30520057237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30520057259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13700 + ... + 247442.

It is an arithmetic number, because the mean of its divisors is an integer number (2277601536).

Almost surely, 2^30520057253 is an apocalyptic number.

It is an amenable number.

30520057253 is a deficient number, since it is larger than the sum of its proper divisors (5921567323).

30520057253 is a wasteful number, since it uses less digits than its factorization.

30520057253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234584.

The product of its (nonzero) digits is 31500, while the sum is 32.

Adding to 30520057253 its reverse (35275002503), we get a palindrome (65795059756).

The spelling of 30520057253 in words is "thirty billion, five hundred twenty million, fifty-seven thousand, two hundred fifty-three".