999652500 has 360 divisors, whose sum is σ = 3943587648. Its totient is φ = 207360000.

The previous prime is 999652483. The next prime is 999652543. The reversal of 999652500 is 5256999.

999652500 is a `hidden beast` number, since 9 + 9 + 96 + 52 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1732212 + ... + 1732788.

Almost surely, 2^999652500 is an apocalyptic number.

999652500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999652500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971793824).

999652500 is an abundant number, since it is smaller than the sum of its proper divisors (2943935148).

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

999652500 is a wasteful number, since it uses less digits than its factorization.

999652500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 999652500 is about 31617.2816668353. The cubic root of 999652500 is about 999.8841532467.

The spelling of 999652500 in words is "nine hundred ninety-nine million, six hundred fifty-two thousand, five hundred".