26172560 has 40 divisors (see below), whose sum is σ = 61067520. Its totient is φ = 10431872.

The previous prime is 26172547. The next prime is 26172563. The reversal of 26172560 is 6527162.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26172563) 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, 37979 + ... + 38661.

It is an arithmetic number, because the mean of its divisors is an integer number (1526688).

Almost surely, 2^26172560 is an apocalyptic number.

26172560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26172560 is an abundant number, since it is smaller than the sum of its proper divisors (34894960).

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

26172560 is a wasteful number, since it uses less digits than its factorization.

26172560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 26172560 is about 5115.9124308377. The cubic root of 26172560 is about 296.9035575114.

The spelling of 26172560 in words is "twenty-six million, one hundred seventy-two thousand, five hundred sixty".