505440501 has 16 divisors (see below), whose sum is σ = 682919424. Its totient is φ = 332486384.

The previous prime is 505440473. The next prime is 505440517. The reversal of 505440501 is 105044505.

It is a cyclic number.

It is not a de Polignac number, because 505440501 - 2¹³ = 505432309 is a prime.

It is a super-2 number, since 2×505440501² = 510940200102262002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505440541) 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, 81430 + ... + 87416.

It is an arithmetic number, because the mean of its divisors is an integer number (42682464).

Almost surely, 2^505440501 is an apocalyptic number.

It is an amenable number.

505440501 is a deficient number, since it is larger than the sum of its proper divisors (177478923).

505440501 is a wasteful number, since it uses less digits than its factorization.

505440501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 505440501 is about 22482.0039364822. The cubic root of 505440501 is about 796.5688997474.

The spelling of 505440501 in words is "five hundred five million, four hundred forty thousand, five hundred one".