99990552 has 32 divisors (see below), whose sum is σ = 251063280. Its totient is φ = 33185280.

The previous prime is 99990551. The next prime is 99990571. The reversal of 99990552 is 25509999.

It is a super-2 number, since 2×99990552² = 19996220978529408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99990551) 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, 3349 + ... + 14532.

Almost surely, 2^99990552 is an apocalyptic number.

It is an amenable number.

99990552 is an abundant number, since it is smaller than the sum of its proper divisors (151072728).

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

99990552 is a wasteful number, since it uses less digits than its factorization.

99990552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18123 (or 18119 counting only the distinct ones).

The product of its (nonzero) digits is 328050, while the sum is 48.

The square root of 99990552 is about 9999.5275888414. The cubic root of 99990552 is about 464.1442649905.

The spelling of 99990552 in words is "ninety-nine million, nine hundred ninety thousand, five hundred fifty-two".