26431453 has 2 divisors, whose sum is σ = 26431454. Its totient is φ = 26431452.

The previous prime is 26431423. The next prime is 26431507. The reversal of 26431453 is 35413462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25938649 + 492804 = 5093^2 + 702^2 .

It is a cyclic number.

It is not a de Polignac number, because 26431453 - 2²¹ = 24334301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26431403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13215726 + 13215727.

It is an arithmetic number, because the mean of its divisors is an integer number (13215727).

Almost surely, 2^26431453 is an apocalyptic number.

It is an amenable number.

26431453 is a deficient number, since it is larger than the sum of its proper divisors (1).

26431453 is an equidigital number, since it uses as much as digits as its factorization.

26431453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 26431453 is about 5141.1528862698. The cubic root of 26431453 is about 297.8793146731.

Subtracting 26431453 from its reverse (35413462), we obtain a square (8982009 = 2997²).

It can be divided in two parts, 2643 and 1453, that added together give a 12-th power (4096 = 2¹²).

The spelling of 26431453 in words is "twenty-six million, four hundred thirty-one thousand, four hundred fifty-three".