99451950 has 48 divisors (see below), whose sum is σ = 265618416. Its totient is φ = 24480000.

The previous prime is 99451939. The next prime is 99451969. The reversal of 99451950 is 5915499.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23551 + ... + 27450.

It is an arithmetic number, because the mean of its divisors is an integer number (5533717).

Almost surely, 2^99451950 is an apocalyptic number.

99451950 is an abundant number, since it is smaller than the sum of its proper divisors (166166466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99451950 is a wasteful number, since it uses less digits than its factorization.

99451950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51029 (or 51024 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 99451950 is about 9972.5598519136. The cubic root of 99451950 is about 463.3093886607.

The spelling of 99451950 in words is "ninety-nine million, four hundred fifty-one thousand, nine hundred fifty".