253278415 has 32 divisors (see below), whose sum is σ = 343719936. Its totient is φ = 177767040.

The previous prime is 253278409. The next prime is 253278437. The reversal of 253278415 is 514872352.

It is not a de Polignac number, because 253278415 - 2⁷ = 253278287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285102 + ... + 285988.

It is an arithmetic number, because the mean of its divisors is an integer number (10741248).

Almost surely, 2^253278415 is an apocalyptic number.

253278415 is a deficient number, since it is larger than the sum of its proper divisors (90441521).

253278415 is a wasteful number, since it uses less digits than its factorization.

253278415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its digits is 67200, while the sum is 37.

The square root of 253278415 is about 15914.7232146839. The cubic root of 253278415 is about 632.7022709167.

The spelling of 253278415 in words is "two hundred fifty-three million, two hundred seventy-eight thousand, four hundred fifteen".