87550433 has 8 divisors (see below), whose sum is σ = 90209256. Its totient is φ = 84931200.

The previous prime is 87550427. The next prime is 87550453. The reversal of 87550433 is 33405578.

It can be written as a sum of positive squares in 4 ways, for example, as 2024929 + 85525504 = 1423^2 + 9248^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87550433 - 2⁶ = 87550369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87550393 and 87550402.

It is not an unprimeable number, because it can be changed into a prime (87550453) 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, 5378 + ... + 14283.

It is an arithmetic number, because the mean of its divisors is an integer number (11276157).

Almost surely, 2^87550433 is an apocalyptic number.

It is an amenable number.

87550433 is a deficient number, since it is larger than the sum of its proper divisors (2658823).

87550433 is a wasteful number, since it uses less digits than its factorization.

87550433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19795.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 87550433 is about 9356.8388358462. The cubic root of 87550433 is about 444.0372790845.

The spelling of 87550433 in words is "eighty-seven million, five hundred fifty thousand, four hundred thirty-three".