26139050 has 72 divisors (see below), whose sum is σ = 58014144. Its totient is φ = 8732640.

The previous prime is 26139023. The next prime is 26139059. The reversal of 26139050 is 5093162.

It is not an unprimeable number, because it can be changed into a prime (26139059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115037 + ... + 115263.

It is an arithmetic number, because the mean of its divisors is an integer number (805752).

Almost surely, 2^26139050 is an apocalyptic number.

26139050 is an abundant number, since it is smaller than the sum of its proper divisors (31875094).

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

26139050 is a wasteful number, since it uses less digits than its factorization.

26139050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 26139050 is about 5112.6363062514. The cubic root of 26139050 is about 296.7767900445.

The spelling of 26139050 in words is "twenty-six million, one hundred thirty-nine thousand, fifty".