26120645 has 8 divisors (see below), whose sum is σ = 31668504. Its totient is φ = 20680704.

The previous prime is 26120621. The next prime is 26120669. The reversal of 26120645 is 54602162.

It is an interprime number because it is at equal distance from previous prime (26120621) and next prime (26120669).

It can be written as a sum of positive squares in 4 ways, for example, as 708964 + 25411681 = 842^2 + 5041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26120645 - 2⁸ = 26120389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26444 + ... + 27413.

It is an arithmetic number, because the mean of its divisors is an integer number (3958563).

Almost surely, 2^26120645 is an apocalyptic number.

It is an amenable number.

26120645 is a deficient number, since it is larger than the sum of its proper divisors (5547859).

26120645 is an equidigital number, since it uses as much as digits as its factorization.

26120645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53959.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 26120645 is about 5110.8360372839. The cubic root of 26120645 is about 296.7071183040.

The spelling of 26120645 in words is "twenty-six million, one hundred twenty thousand, six hundred forty-five".