26955531 has 8 divisors (see below), whose sum is σ = 39934160. Its totient is φ = 17970336.

The previous prime is 26955503. The next prime is 26955559. The reversal of 26955531 is 13555962.

It is an interprime number because it is at equal distance from previous prime (26955503) and next prime (26955559).

It is not a de Polignac number, because 26955531 - 2⁷ = 26955403 is a prime.

It is a super-2 number, since 2×26955531² = 1453201302983922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26955631) 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, 499150 + ... + 499203.

It is an arithmetic number, because the mean of its divisors is an integer number (4991770).

Almost surely, 2^26955531 is an apocalyptic number.

26955531 is a deficient number, since it is larger than the sum of its proper divisors (12978629).

26955531 is an equidigital number, since it uses as much as digits as its factorization.

26955531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998362 (or 998356 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 26955531 is about 5191.8716278429. The cubic root of 26955531 is about 299.8352094969.

The spelling of 26955531 in words is "twenty-six million, nine hundred fifty-five thousand, five hundred thirty-one".