26642451 has 16 divisors (see below), whose sum is σ = 41033088. Its totient is φ = 15196800.

The previous prime is 26642449. The next prime is 26642461. The reversal of 26642451 is 15424662.

It is not a de Polignac number, because 26642451 - 2¹ = 26642449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26642431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23185 + ... + 24306.

It is an arithmetic number, because the mean of its divisors is an integer number (2564568).

Almost surely, 2^26642451 is an apocalyptic number.

26642451 is a deficient number, since it is larger than the sum of its proper divisors (14390637).

26642451 is a wasteful number, since it uses less digits than its factorization.

26642451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47522.

The product of its digits is 11520, while the sum is 30.

The square root of 26642451 is about 5161.6325905667. The cubic root of 26642451 is about 298.6698555465.

It can be divided in two parts, 2664 and 2451, that added together give a palindrome (5115).

The spelling of 26642451 in words is "twenty-six million, six hundred forty-two thousand, four hundred fifty-one".