87051554 has 8 divisors (see below), whose sum is σ = 131086188. Its totient is φ = 43356160.

The previous prime is 87051529. The next prime is 87051557. The reversal of 87051554 is 45515078.

It can be written as a sum of positive squares in 2 ways, for example, as 86918329 + 133225 = 9323^2 + 365^2 .

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

It is not an unprimeable number, because it can be changed into a prime (87051557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84167 + ... + 85194.

Almost surely, 2^87051554 is an apocalyptic number.

87051554 is a deficient number, since it is larger than the sum of its proper divisors (44034634).

87051554 is a wasteful number, since it uses less digits than its factorization.

87051554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169620.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 87051554 is about 9330.1422282836. The cubic root of 87051554 is about 443.1922691125.

The spelling of 87051554 in words is "eighty-seven million, fifty-one thousand, five hundred fifty-four".