87030551 has 10 divisors (see below), whose sum is σ = 91279032. Its totient is φ = 82978940.

The previous prime is 87030529. The next prime is 87030553. The reversal of 87030551 is 15503078.

It is not a de Polignac number, because 87030551 - 2²⁶ = 19921687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87030553) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 279686 + ... + 279996.

Almost surely, 2^87030551 is an apocalyptic number.

87030551 is a deficient number, since it is larger than the sum of its proper divisors (4248481).

87030551 is an frugal number, since it uses more digits than its factorization.

87030551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 87030551 is about 9329.0166148421. The cubic root of 87030551 is about 443.1566231246.

The spelling of 87030551 in words is "eighty-seven million, thirty thousand, five hundred fifty-one".