503423155 has 16 divisors (see below), whose sum is σ = 612864000. Its totient is φ = 396920160.

The previous prime is 503423143. The next prime is 503423161. The reversal of 503423155 is 551324305.

It is not a de Polignac number, because 503423155 - 2⁷ = 503423027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359146 + ... + 360544.

It is an arithmetic number, because the mean of its divisors is an integer number (38304000).

Almost surely, 2^503423155 is an apocalyptic number.

503423155 is a deficient number, since it is larger than the sum of its proper divisors (109440845).

503423155 is a wasteful number, since it uses less digits than its factorization.

503423155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 503423155 is about 22437.0932832219. The cubic root of 503423155 is about 795.5077146620.

The spelling of 503423155 in words is "five hundred three million, four hundred twenty-three thousand, one hundred fifty-five".