505661502 has 16 divisors (see below), whose sum is σ = 1012079232. Its totient is φ = 168427800.

The previous prime is 505661483. The next prime is 505661521. The reversal of 505661502 is 205166505.

It is an interprime number because it is at equal distance from previous prime (505661483) and next prime (505661521).

It is a self number, because there is not a number n which added to its sum of digits gives 505661502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22624 + ... + 39027.

It is an arithmetic number, because the mean of its divisors is an integer number (63254952).

Almost surely, 2^505661502 is an apocalyptic number.

505661502 is an abundant number, since it is smaller than the sum of its proper divisors (506417730).

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

505661502 is a wasteful number, since it uses less digits than its factorization.

505661502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63023.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 505661502 is about 22486.9184638536. The cubic root of 505661502 is about 796.6849812456.

The spelling of 505661502 in words is "five hundred five million, six hundred sixty-one thousand, five hundred two".