215082825 has 12 divisors (see below), whose sum is σ = 355603728. Its totient is φ = 114710800.

The previous prime is 215082823. The next prime is 215082859. The reversal of 215082825 is 528280512.

It is not a de Polignac number, because 215082825 - 2¹ = 215082823 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215082823) 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, 1433811 + ... + 1433960.

It is an arithmetic number, because the mean of its divisors is an integer number (29633644).

Almost surely, 2^215082825 is an apocalyptic number.

215082825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215082825 is a deficient number, since it is larger than the sum of its proper divisors (140520903).

215082825 is a wasteful number, since it uses less digits than its factorization.

215082825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867784 (or 2867779 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 215082825 is about 14665.7023357219. The cubic root of 215082825 is about 599.1495590420.

The spelling of 215082825 in words is "two hundred fifteen million, eighty-two thousand, eight hundred twenty-five".