105025998 has 64 divisors (see below), whose sum is σ = 263139840. Its totient is φ = 27148800.

The previous prime is 105025993. The next prime is 105026011. The reversal of 105025998 is 899520501.

It is a super-2 number, since 2×105025998² = 22060920511792008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105025993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129418 + ... + 130226.

It is an arithmetic number, because the mean of its divisors is an integer number (4111560).

Almost surely, 2^105025998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105025998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131569920).

105025998 is an abundant number, since it is smaller than the sum of its proper divisors (158113842).

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

105025998 is a wasteful number, since it uses less digits than its factorization.

105025998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 105025998 is about 10248.2192599495. The cubic root of 105025998 is about 471.8083315195.

The spelling of 105025998 in words is "one hundred five million, twenty-five thousand, nine hundred ninety-eight".