505429750 has 32 divisors (see below), whose sum is σ = 1081334592. Its totient is φ = 173289600.

The previous prime is 505429721. The next prime is 505429753. The reversal of 505429750 is 57924505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505429753) 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, 142659 + ... + 146158.

It is an arithmetic number, because the mean of its divisors is an integer number (33791706).

Almost surely, 2^505429750 is an apocalyptic number.

505429750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505429750 is an abundant number, since it is smaller than the sum of its proper divisors (575904842).

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

505429750 is a wasteful number, since it uses less digits than its factorization.

505429750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288841 (or 288831 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 505429750 is about 22481.7648328595. The cubic root of 505429750 is about 796.5632518865.

The spelling of 505429750 in words is "five hundred five million, four hundred twenty-nine thousand, seven hundred fifty".