503418345 has 16 divisors (see below), whose sum is σ = 805842432. Its totient is φ = 268365440.

The previous prime is 503418343. The next prime is 503418373. The reversal of 503418345 is 543814305.

It is not a de Polignac number, because 503418345 - 2¹ = 503418343 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (503418341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32389 + ... + 45341.

It is an arithmetic number, because the mean of its divisors is an integer number (50365152).

Almost surely, 2^503418345 is an apocalyptic number.

It is an amenable number.

503418345 is a deficient number, since it is larger than the sum of its proper divisors (302424087).

503418345 is a wasteful number, since it uses less digits than its factorization.

503418345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 503418345 is about 22436.9860943933. The cubic root of 503418345 is about 795.5051810715.

The spelling of 503418345 in words is "five hundred three million, four hundred eighteen thousand, three hundred forty-five".