503040155 has 8 divisors (see below), whose sum is σ = 609509472. Its totient is φ = 398524608.

The previous prime is 503040137. The next prime is 503040173. The reversal of 503040155 is 551040305.

It is an interprime number because it is at equal distance from previous prime (503040137) and next prime (503040173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503040155 - 2¹⁴ = 503023771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503040155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487874 + ... + 488903.

It is an arithmetic number, because the mean of its divisors is an integer number (76188684).

Almost surely, 2^503040155 is an apocalyptic number.

503040155 is a deficient number, since it is larger than the sum of its proper divisors (106469317).

503040155 is a wasteful number, since it uses less digits than its factorization.

503040155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976885.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 503040155 is about 22428.5566856184. The cubic root of 503040155 is about 795.3059250077.

The spelling of 503040155 in words is "five hundred three million, forty thousand, one hundred fifty-five".