505278053 has 36 divisors (see below), whose sum is σ = 623737548. Its totient is φ = 408038400.

The previous prime is 505278047. The next prime is 505278071. The reversal of 505278053 is 350872505.

It can be written as a sum of positive squares in 2 ways, for example, as 330985249 + 174292804 = 18193^2 + 13202^2 .

It is not a de Polignac number, because 505278053 - 2¹⁶ = 505212517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505278013) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2617925 + ... + 2618117.

It is an arithmetic number, because the mean of its divisors is an integer number (17326043).

Almost surely, 2^505278053 is an apocalyptic number.

It is an amenable number.

505278053 is a deficient number, since it is larger than the sum of its proper divisors (118459495).

505278053 is a wasteful number, since it uses less digits than its factorization.

505278053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 505278053 is about 22478.3908009448. The cubic root of 505278053 is about 796.4835518248.

The spelling of 505278053 in words is "five hundred five million, two hundred seventy-eight thousand, fifty-three".