87455225 has 48 divisors (see below), whose sum is σ = 134991360. Its totient is φ = 55219200.

The previous prime is 87455219. The next prime is 87455237. The reversal of 87455225 is 52255478.

It is not a de Polignac number, because 87455225 - 2¹⁶ = 87389689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60056 + ... + 61494.

It is an arithmetic number, because the mean of its divisors is an integer number (2812320).

Almost surely, 2^87455225 is an apocalyptic number.

87455225 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87455225 is a deficient number, since it is larger than the sum of its proper divisors (47536135).

87455225 is a wasteful number, since it uses less digits than its factorization.

87455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1485 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 87455225 is about 9351.7498362606. The cubic root of 87455225 is about 443.8762624240.

The spelling of 87455225 in words is "eighty-seven million, four hundred fifty-five thousand, two hundred twenty-five".