99420552 has 192 divisors, whose sum is σ = 341452800. Its totient is φ = 25384320.

The previous prime is 99420551. The next prime is 99420569. The reversal of 99420552 is 25502499.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (99420551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 437863 + ... + 438089.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 2^99420552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99420552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170726400).

99420552 is an abundant number, since it is smaller than the sum of its proper divisors (242032248).

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

99420552 is a wasteful number, since it uses less digits than its factorization.

99420552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 99420552 is about 9970.9855079626. The cubic root of 99420552 is about 463.2606263545.

The spelling of 99420552 in words is "ninety-nine million, four hundred twenty thousand, five hundred fifty-two".