30401253 has 12 divisors (see below), whose sum is σ = 46496268. Its totient is φ = 19075200.

The previous prime is 30401249. The next prime is 30401263. The reversal of 30401253 is 35210403.

It can be written as a sum of positive squares in 2 ways, for example, as 27688644 + 2712609 = 5262^2 + 1647^2 .

It is not a de Polignac number, because 30401253 - 2² = 30401249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99198 + ... + 99503.

It is an arithmetic number, because the mean of its divisors is an integer number (3874689).

Almost surely, 2^30401253 is an apocalyptic number.

It is an amenable number.

30401253 is a deficient number, since it is larger than the sum of its proper divisors (16095015).

30401253 is a wasteful number, since it uses less digits than its factorization.

30401253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198724 (or 198721 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30401253 is about 5513.7331273829. The cubic root of 30401253 is about 312.1024380101.

Adding to 30401253 its reverse (35210403), we get a palindrome (65611656).

The spelling of 30401253 in words is "thirty million, four hundred one thousand, two hundred fifty-three".