26661552 has 60 divisors (see below), whose sum is σ = 70542360. Its totient is φ = 8676096.

The previous prime is 26661539. The next prime is 26661553. The reversal of 26661552 is 25516662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26661553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299524 + ... + 299612.

It is an arithmetic number, because the mean of its divisors is an integer number (1175706).

Almost surely, 2^26661552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26661552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35271180).

26661552 is an abundant number, since it is smaller than the sum of its proper divisors (43880808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26661552 is an equidigital number, since it uses as much as digits as its factorization.

26661552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 173 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 26661552 is about 5163.4825457243. The cubic root of 26661552 is about 298.7412144729.

The spelling of 26661552 in words is "twenty-six million, six hundred sixty-one thousand, five hundred fifty-two".