505662540 has 48 divisors (see below), whose sum is σ = 1426064640. Its totient is φ = 133871040.

The previous prime is 505662539. The next prime is 505662541. The reversal of 505662540 is 45266505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (505662539) and next prime (505662541).

It is not an unprimeable number, because it can be changed into a prime (505662541) 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, 21976 + ... + 38655.

It is an arithmetic number, because the mean of its divisors is an integer number (29709680).

Almost surely, 2^505662540 is an apocalyptic number.

It is an amenable number.

505662540 is an abundant number, since it is smaller than the sum of its proper divisors (920402100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505662540 is a wasteful number, since it uses less digits than its factorization.

505662540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60782 (or 60780 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 505662540 is about 22486.9415439272. The cubic root of 505662540 is about 796.6855263786.

The spelling of 505662540 in words is "five hundred five million, six hundred sixty-two thousand, five hundred forty".