253308029 has 8 divisors (see below), whose sum is σ = 276531192. Its totient is φ = 230618880.

The previous prime is 253308023. The next prime is 253308053. The reversal of 253308029 is 920803352.

It can be written as a sum of positive squares in 4 ways, for example, as 2244004 + 251064025 = 1498^2 + 15845^2 .

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 253308029 - 2⁸ = 253307773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253307986 and 253308004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253308023) 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, 132512 + ... + 134409.

It is an arithmetic number, because the mean of its divisors is an integer number (34566399).

Almost surely, 2^253308029 is an apocalyptic number.

It is an amenable number.

253308029 is a deficient number, since it is larger than the sum of its proper divisors (23223163).

253308029 is a wasteful number, since it uses less digits than its factorization.

253308029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267007.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 253308029 is about 15915.6535838149. The cubic root of 253308029 is about 632.7269290449.

The spelling of 253308029 in words is "two hundred fifty-three million, three hundred eight thousand, twenty-nine".