26555642 has 16 divisors (see below), whose sum is σ = 40542120. Its totient is φ = 13043712.

The previous prime is 26555609. The next prime is 26555647. The reversal of 26555642 is 24655562.

It can be written as a sum of positive squares in 4 ways, for example, as 8755681 + 17799961 = 2959^2 + 4219^2 .

It is not an unprimeable number, because it can be changed into a prime (26555647) 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, 33968 + ... + 34740.

Almost surely, 2^26555642 is an apocalyptic number.

26555642 is a deficient number, since it is larger than the sum of its proper divisors (13986478).

26555642 is a wasteful number, since it uses less digits than its factorization.

26555642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 72000, while the sum is 35.

The square root of 26555642 is about 5153.2166653460. The cubic root of 26555642 is about 298.3451176297.

The spelling of 26555642 in words is "twenty-six million, five hundred fifty-five thousand, six hundred forty-two".