870542551 has 8 divisors (see below), whose sum is σ = 917561520. Its totient is φ = 823643712.

The previous prime is 870542539. The next prime is 870542567. The reversal of 870542551 is 155245078.

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 870542551 - 2⁷ = 870542423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870542551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870542501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14950 + ... + 44323.

It is an arithmetic number, because the mean of its divisors is an integer number (114695190).

Almost surely, 2^870542551 is an apocalyptic number.

870542551 is a deficient number, since it is larger than the sum of its proper divisors (47018969).

870542551 is a wasteful number, since it uses less digits than its factorization.

870542551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60065.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 870542551 is about 29504.9580748728. The cubic root of 870542551 is about 954.8386745393.

The spelling of 870542551 in words is "eight hundred seventy million, five hundred forty-two thousand, five hundred fifty-one".