2078431253 has 4 divisors (see below), whose sum is σ = 2106902988. Its totient is φ = 2049959520.

The previous prime is 2078431231. The next prime is 2078431283. The reversal of 2078431253 is 3521348702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 906190609 + 1172240644 = 30103^2 + 34238^2 .

It is a cyclic number.

It is not a de Polignac number, because 2078431253 - 2²² = 2074236949 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 (2078431213) 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, 14235758 + ... + 14235903.

It is an arithmetic number, because the mean of its divisors is an integer number (526725747).

Almost surely, 2^2078431253 is an apocalyptic number.

It is an amenable number.

2078431253 is a deficient number, since it is larger than the sum of its proper divisors (28471735).

2078431253 is an equidigital number, since it uses as much as digits as its factorization.

2078431253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28471734.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2078431253 is about 45589.8152332294. The cubic root of 2078431253 is about 1276.1798644933.

Adding to 2078431253 its reverse (3521348702), we get a palindrome (5599779955).

The spelling of 2078431253 in words is "two billion, seventy-eight million, four hundred thirty-one thousand, two hundred fifty-three".