87551330 has 16 divisors (see below), whose sum is σ = 158135544. Its totient is φ = 34899840.

The previous prime is 87551293. The next prime is 87551341. The reversal of 87551330 is 3315578.

It can be written as a sum of positive squares in 4 ways, for example, as 73496329 + 14055001 = 8573^2 + 3749^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12011 + ... + 17870.

Almost surely, 2^87551330 is an apocalyptic number.

87551330 is a deficient number, since it is larger than the sum of its proper divisors (70584214).

87551330 is a wasteful number, since it uses less digits than its factorization.

87551330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30181.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 87551330 is about 9356.8867685785. The cubic root of 87551330 is about 444.0387955441.

The spelling of 87551330 in words is "eighty-seven million, five hundred fifty-one thousand, three hundred thirty".