26640552 has 16 divisors (see below), whose sum is σ = 66601440. Its totient is φ = 8880176.

The previous prime is 26640533. The next prime is 26640569. The reversal of 26640552 is 25504662.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554988 + ... + 555035.

It is an arithmetic number, because the mean of its divisors is an integer number (4162590).

Almost surely, 2^26640552 is an apocalyptic number.

It is an amenable number.

26640552 is an abundant number, since it is smaller than the sum of its proper divisors (39960888).

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

26640552 is a wasteful number, since it uses less digits than its factorization.

26640552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110032 (or 1110028 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 26640552 is about 5161.4486338624. The cubic root of 26640552 is about 298.6627592583.

The spelling of 26640552 in words is "twenty-six million, six hundred forty thousand, five hundred fifty-two".