253878473 has 4 divisors (see below), whose sum is σ = 254042880. Its totient is φ = 253714068.

The previous prime is 253878403. The next prime is 253878617. The reversal of 253878473 is 374878352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253878473 - 2¹² = 253874377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253878403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79865 + ... + 82982.

It is an arithmetic number, because the mean of its divisors is an integer number (63510720).

Almost surely, 2^253878473 is an apocalyptic number.

It is an amenable number.

253878473 is a deficient number, since it is larger than the sum of its proper divisors (164407).

253878473 is a wasteful number, since it uses less digits than its factorization.

253878473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164406.

The product of its digits is 1128960, while the sum is 47.

The square root of 253878473 is about 15933.5643532764. The cubic root of 253878473 is about 633.2015352399.

The spelling of 253878473 in words is "two hundred fifty-three million, eight hundred seventy-eight thousand, four hundred seventy-three".