253347407 has 4 divisors (see below), whose sum is σ = 261519936. Its totient is φ = 245174880.

The previous prime is 253347373. The next prime is 253347467. The reversal of 253347407 is 704743352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253347407 - 2¹⁰ = 253346383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253347467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4086218 + ... + 4086279.

It is an arithmetic number, because the mean of its divisors is an integer number (65379984).

Almost surely, 2^253347407 is an apocalyptic number.

253347407 is a deficient number, since it is larger than the sum of its proper divisors (8172529).

253347407 is an equidigital number, since it uses as much as digits as its factorization.

253347407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8172528.

The product of its (nonzero) digits is 70560, while the sum is 35.

The square root of 253347407 is about 15916.8906197159. The cubic root of 253347407 is about 632.7597142013.

The spelling of 253347407 in words is "two hundred fifty-three million, three hundred forty-seven thousand, four hundred seven".