26121953 has 16 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 21161280.

The previous prime is 26121947. The next prime is 26121967. The reversal of 26121953 is 35912162.

It is a cyclic number.

It is not a de Polignac number, because 26121953 - 2⁴ = 26121937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26121913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998 + ... + 7296.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^26121953 is an apocalyptic number.

It is an amenable number.

26121953 is a deficient number, since it is larger than the sum of its proper divisors (5630047).

26121953 is a wasteful number, since it uses less digits than its factorization.

26121953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6352.

The product of its digits is 3240, while the sum is 29.

The square root of 26121953 is about 5110.9639990906. The cubic root of 26121953 is about 296.7120707906.

The spelling of 26121953 in words is "twenty-six million, one hundred twenty-one thousand, nine hundred fifty-three".