87550725 has 24 divisors (see below), whose sum is σ = 146742592. Its totient is φ = 46051200.

The previous prime is 87550699. The next prime is 87550747. The reversal of 87550725 is 52705578.

It is not a de Polignac number, because 87550725 - 2¹⁷ = 87419653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2521 + ... + 13470.

Almost surely, 2^87550725 is an apocalyptic number.

It is an amenable number.

87550725 is a deficient number, since it is larger than the sum of its proper divisors (59191867).

87550725 is a wasteful number, since it uses less digits than its factorization.

87550725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16077 (or 16072 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 87550725 is about 9356.8544393936. The cubic root of 87550725 is about 444.0377727381.

The spelling of 87550725 in words is "eighty-seven million, five hundred fifty thousand, seven hundred twenty-five".