26520493 has 8 divisors (see below), whose sum is σ = 28131840. Its totient is φ = 24914880.

The previous prime is 26520467. The next prime is 26520497. The reversal of 26520493 is 39402562.

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 26520493 - 2¹⁷ = 26389421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26520497) 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, 11508 + ... + 13618.

It is an arithmetic number, because the mean of its divisors is an integer number (3516480).

Almost surely, 2^26520493 is an apocalyptic number.

It is an amenable number.

26520493 is a deficient number, since it is larger than the sum of its proper divisors (1611347).

26520493 is a wasteful number, since it uses less digits than its factorization.

26520493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 26520493 is about 5149.8051419447. The cubic root of 26520493 is about 298.2134298250.

The spelling of 26520493 in words is "twenty-six million, five hundred twenty thousand, four hundred ninety-three".