253504330 has 16 divisors (see below), whose sum is σ = 459043200. Its totient is φ = 100793872.

The previous prime is 253504261. The next prime is 253504331. The reversal of 253504330 is 33405352.

It is a happy number.

253504330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 253504295 and 253504304.

It is not an unprimeable number, because it can be changed into a prime (253504331) 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, 74230 + ... + 77569.

It is an arithmetic number, because the mean of its divisors is an integer number (28690200).

Almost surely, 2^253504330 is an apocalyptic number.

253504330 is a deficient number, since it is larger than the sum of its proper divisors (205538870).

253504330 is a wasteful number, since it uses less digits than its factorization.

253504330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151973.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 253504330 is about 15921.8193055944. The cubic root of 253504330 is about 632.8903307065.

Adding to 253504330 its reverse (33405352), we get a palindrome (286909682).

The spelling of 253504330 in words is "two hundred fifty-three million, five hundred four thousand, three hundred thirty".