99565454 has 4 divisors (see below), whose sum is σ = 149348184. Its totient is φ = 49782726.

The previous prime is 99565451. The next prime is 99565463. The reversal of 99565454 is 45456599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45456599 = 1987 ⋅22877.

It is a super-2 number, since 2×99565454² = 19826559260452232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99565399 and 99565408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99565451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24891362 + ... + 24891365.

It is an arithmetic number, because the mean of its divisors is an integer number (37337046).

Almost surely, 2^99565454 is an apocalyptic number.

99565454 is a deficient number, since it is larger than the sum of its proper divisors (49782730).

99565454 is a wasteful number, since it uses less digits than its factorization.

99565454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49782729.

The product of its digits is 972000, while the sum is 47.

The square root of 99565454 is about 9978.2490447974. The cubic root of 99565454 is about 463.4855791916.

The spelling of 99565454 in words is "ninety-nine million, five hundred sixty-five thousand, four hundred fifty-four".