26545961 has 4 divisors (see below), whose sum is σ = 28587972. Its totient is φ = 24503952.

The previous prime is 26545957. The next prime is 26545997. The reversal of 26545961 is 16954562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16954562 = 2 ⋅8477281.

It can be written as a sum of positive squares in 2 ways, for example, as 14295961 + 12250000 = 3781^2 + 3500^2 .

It is a cyclic number.

It is not a de Polignac number, because 26545961 - 2² = 26545957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26545361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020986 + ... + 1021011.

It is an arithmetic number, because the mean of its divisors is an integer number (7146993).

Almost surely, 2^26545961 is an apocalyptic number.

It is an amenable number.

26545961 is a deficient number, since it is larger than the sum of its proper divisors (2042011).

26545961 is a wasteful number, since it uses less digits than its factorization.

26545961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042010.

The product of its digits is 64800, while the sum is 38.

The square root of 26545961 is about 5152.2772635020. The cubic root of 26545961 is about 298.3088587921.

The spelling of 26545961 in words is "twenty-six million, five hundred forty-five thousand, nine hundred sixty-one".