99925657 has 4 divisors (see below), whose sum is σ = 107612260. Its totient is φ = 92239056.

The previous prime is 99925607. The next prime is 99925667. The reversal of 99925657 is 75652999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65221776 + 34703881 = 8076^2 + 5891^2 .

It is not a de Polignac number, because 99925657 - 2¹¹ = 99923609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99925607) 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, 3843282 + ... + 3843307.

It is an arithmetic number, because the mean of its divisors is an integer number (26903065).

Almost surely, 2^99925657 is an apocalyptic number.

It is an amenable number.

99925657 is a deficient number, since it is larger than the sum of its proper divisors (7686603).

99925657 is a wasteful number, since it uses less digits than its factorization.

99925657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686602.

The product of its digits is 1530900, while the sum is 52.

The square root of 99925657 is about 9996.2821588829. The cubic root of 99925657 is about 464.0438316327.

The spelling of 99925657 in words is "ninety-nine million, nine hundred twenty-five thousand, six hundred fifty-seven".