99551740 has 24 divisors (see below), whose sum is σ = 210117600. Its totient is φ = 39619008.

The previous prime is 99551729. The next prime is 99551741. The reversal of 99551740 is 4715599.

It is a junction number, because it is equal to n+sod(n) for n = 99551693 and 99551702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99551741) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8527 + ... + 16486.

It is an arithmetic number, because the mean of its divisors is an integer number (8754900).

Almost surely, 2^99551740 is an apocalyptic number.

It is an amenable number.

99551740 is an abundant number, since it is smaller than the sum of its proper divisors (110565860).

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

99551740 is a wasteful number, since it uses less digits than its factorization.

99551740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25221 (or 25219 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 99551740 is about 9977.5618264183. The cubic root of 99551740 is about 463.4642982726.

The spelling of 99551740 in words is "ninety-nine million, five hundred fifty-one thousand, seven hundred forty".