99487825 has 12 divisors (see below), whose sum is σ = 130622220. Its totient is φ = 74908160.

The previous prime is 99487823. The next prime is 99487841. The reversal of 99487825 is 52878499.

It can be written as a sum of positive squares in 6 ways, for example, as 4210704 + 95277121 = 2052^2 + 9761^2 .

It is not a de Polignac number, because 99487825 - 2¹ = 99487823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99487823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116620 + ... + 117469.

It is an arithmetic number, because the mean of its divisors is an integer number (10885185).

Almost surely, 2^99487825 is an apocalyptic number.

It is an amenable number.

99487825 is a deficient number, since it is larger than the sum of its proper divisors (31134395).

99487825 is a wasteful number, since it uses less digits than its factorization.

99487825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234116 (or 234111 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 99487825 is about 9974.3583753543. The cubic root of 99487825 is about 463.3650913599.

The spelling of 99487825 in words is "ninety-nine million, four hundred eighty-seven thousand, eight hundred twenty-five".