99552545 has 4 divisors (see below), whose sum is σ = 119463060. Its totient is φ = 79642032.

The previous prime is 99552539. The next prime is 99552547. The reversal of 99552545 is 54525599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54525599 = 3571 ⋅15269.

It can be written as a sum of positive squares in 2 ways, for example, as 51208336 + 48344209 = 7156^2 + 6953^2 .

It is a cyclic number.

It is not a de Polignac number, because 99552545 - 2¹⁴ = 99536161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99552496 and 99552505.

It is not an unprimeable number, because it can be changed into a prime (99552547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9955250 + ... + 9955259.

It is an arithmetic number, because the mean of its divisors is an integer number (29865765).

Almost surely, 2^99552545 is an apocalyptic number.

It is an amenable number.

99552545 is a deficient number, since it is larger than the sum of its proper divisors (19910515).

99552545 is a wasteful number, since it uses less digits than its factorization.

99552545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19910514.

The product of its digits is 405000, while the sum is 44.

The square root of 99552545 is about 9977.6021668535. The cubic root of 99552545 is about 463.4655474982.

The spelling of 99552545 in words is "ninety-nine million, five hundred fifty-two thousand, five hundred forty-five".