26251998 has 16 divisors (see below), whose sum is σ = 52569216. Its totient is φ = 8739800.

The previous prime is 26251997. The next prime is 26252011. The reversal of 26251998 is 89915262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26251997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3673 + ... + 8123.

It is an arithmetic number, because the mean of its divisors is an integer number (3285576).

Almost surely, 2^26251998 is an apocalyptic number.

26251998 is an abundant number, since it is smaller than the sum of its proper divisors (26317218).

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

26251998 is a wasteful number, since it uses less digits than its factorization.

26251998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439.

The product of its digits is 77760, while the sum is 42.

The square root of 26251998 is about 5123.6703641042. The cubic root of 26251998 is about 297.2036377364.

The spelling of 26251998 in words is "twenty-six million, two hundred fifty-one thousand, nine hundred ninety-eight".