26531625 has 32 divisors (see below), whose sum is σ = 44553600. Its totient is φ = 14020800.

The previous prime is 26531623. The next prime is 26531639. The reversal of 26531625 is 52613562.

It is not a de Polignac number, because 26531625 - 2¹ = 26531623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26531592 and 26531601.

It is not an unprimeable number, because it can be changed into a prime (26531623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51871 + ... + 52379.

It is an arithmetic number, because the mean of its divisors is an integer number (1392300).

Almost surely, 2^26531625 is an apocalyptic number.

26531625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26531625 is a deficient number, since it is larger than the sum of its proper divisors (18021975).

26531625 is a wasteful number, since it uses less digits than its factorization.

26531625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 656 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 26531625 is about 5150.8858461434. The cubic root of 26531625 is about 298.2551491038.

It can be divided in two parts, 2653 and 1625, that added together give a triangular number (4278 = T₉₂).

The spelling of 26531625 in words is "twenty-six million, five hundred thirty-one thousand, six hundred twenty-five".