99010251 has 6 divisors (see below), whose sum is σ = 143014820. Its totient is φ = 66006828.

The previous prime is 99010231. The next prime is 99010277. The reversal of 99010251 is 15201099.

It is a happy number.

It is not a de Polignac number, because 99010251 - 2⁹ = 99009739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99010231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5500561 + ... + 5500578.

Almost surely, 2^99010251 is an apocalyptic number.

99010251 is a deficient number, since it is larger than the sum of its proper divisors (44004569).

99010251 is a wasteful number, since it uses less digits than its factorization.

99010251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001145 (or 11001142 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 99010251 is about 9950.3894898642. The cubic root of 99010251 is about 462.6224673007.

The spelling of 99010251 in words is "ninety-nine million, ten thousand, two hundred fifty-one".