505045623 has 8 divisors (see below), whose sum is σ = 677854336. Its totient is φ = 334467000.

The previous prime is 505045613. The next prime is 505045633. The reversal of 505045623 is 326540505.

It is an interprime number because it is at equal distance from previous prime (505045613) and next prime (505045633).

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

It is not a de Polignac number, because 505045623 - 2⁶ = 505045559 is a prime.

It is a super-2 number, since 2×505045623² = 510142162622916258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505045613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556993 + ... + 557898.

It is an arithmetic number, because the mean of its divisors is an integer number (84731792).

Almost surely, 2^505045623 is an apocalyptic number.

505045623 is a deficient number, since it is larger than the sum of its proper divisors (172808713).

505045623 is a wasteful number, since it uses less digits than its factorization.

505045623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115045.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 505045623 is about 22473.2201297455. The cubic root of 505045623 is about 796.3614045144.

The spelling of 505045623 in words is "five hundred five million, forty-five thousand, six hundred twenty-three".