99725503 has 4 divisors (see below), whose sum is σ = 99855288. Its totient is φ = 99595720.

The previous prime is 99725501. The next prime is 99725531. The reversal of 99725503 is 30552799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30552799 = 3617 ⋅8447.

It is a cyclic number.

It is not a de Polignac number, because 99725503 - 2¹ = 99725501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99725501) 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 3 ways as a sum of consecutive naturals, for example, 63733 + ... + 65278.

It is an arithmetic number, because the mean of its divisors is an integer number (24963822).

Almost surely, 2^99725503 is an apocalyptic number.

99725503 is a deficient number, since it is larger than the sum of its proper divisors (129785).

99725503 is a wasteful number, since it uses less digits than its factorization.

99725503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129784.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 99725503 is about 9986.2657184756. The cubic root of 99725503 is about 463.7337934340.

The spelling of 99725503 in words is "ninety-nine million, seven hundred twenty-five thousand, five hundred three".