253215430330 has 8 divisors (see below), whose sum is σ = 455787774612. Its totient is φ = 101286172128.

The previous prime is 253215430301. The next prime is 253215430367. The reversal of 253215430330 is 33034512352.

It can be written as a sum of positive squares in 2 ways, for example, as 234739281001 + 18476149329 = 484499^2 + 135927^2 .

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

It is a super-4 number, since 4×253215430330⁴ (a number of 47 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253215430292 and 253215430301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12660771507 + ... + 12660771526.

Almost surely, 2^253215430330 is an apocalyptic number.

253215430330 is a deficient number, since it is larger than the sum of its proper divisors (202572344282).

253215430330 is a wasteful number, since it uses less digits than its factorization.

253215430330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25321543040.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 253215430330 its reverse (33034512352), we get a palindrome (286249942682).

The spelling of 253215430330 in words is "two hundred fifty-three billion, two hundred fifteen million, four hundred thirty thousand, three hundred thirty".