26012431 has 4 divisors (see below), whose sum is σ = 27542592. Its totient is φ = 24482272.

The previous prime is 26012429. The next prime is 26012447. The reversal of 26012431 is 13421062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26012431 - 2¹ = 26012429 is a prime.

It is a super-2 number, since 2×26012431² = 1353293133059522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26012399 and 26012408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26012401) 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, 765055 + ... + 765088.

It is an arithmetic number, because the mean of its divisors is an integer number (6885648).

Almost surely, 2^26012431 is an apocalyptic number.

26012431 is a deficient number, since it is larger than the sum of its proper divisors (1530161).

26012431 is a wasteful number, since it uses less digits than its factorization.

26012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530160.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 26012431 is about 5100.2383277647. The cubic root of 26012431 is about 296.2968131498.

Adding to 26012431 its reverse (13421062), we get a palindrome (39433493).

The spelling of 26012431 in words is "twenty-six million, twelve thousand, four hundred thirty-one".