491252052 has 24 divisors (see below), whose sum is σ = 1151401216. Its totient is φ = 163015488.

The previous prime is 491252039. The next prime is 491252057. The reversal of 491252052 is 250252194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491252057) 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, 89113 + ... + 94464.

Almost surely, 2^491252052 is an apocalyptic number.

It is an amenable number.

491252052 is an abundant number, since it is smaller than the sum of its proper divisors (660149164).

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

491252052 is a wasteful number, since it uses less digits than its factorization.

491252052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183807 (or 183805 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 491252052 is about 22164.2065502016. The cubic root of 491252052 is about 789.0444313403.

The spelling of 491252052 in words is "four hundred ninety-one million, two hundred fifty-two thousand, fifty-two".