5572421887 has 4 divisors (see below), whose sum is σ = 5593137480. Its totient is φ = 5551706296.

The previous prime is 5572421873. The next prime is 5572421893. The reversal of 5572421887 is 7881242755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5572421887 is a prime.

It is a super-3 number, since 3×5572421887³ (a number of 30 digits) contains 333 as substring.

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 5572421887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5572421287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10357393 + ... + 10357930.

It is an arithmetic number, because the mean of its divisors is an integer number (1398284370).

Almost surely, 2^5572421887 is an apocalyptic number.

5572421887 is a deficient number, since it is larger than the sum of its proper divisors (20715593).

5572421887 is a wasteful number, since it uses less digits than its factorization.

5572421887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20715592.

The product of its digits is 1254400, while the sum is 49.

The square root of 5572421887 is about 74648.6562973507. The cubic root of 5572421887 is about 1772.8881197345. Note that the first 3 decimals are identical.

The spelling of 5572421887 in words is "five billion, five hundred seventy-two million, four hundred twenty-one thousand, eight hundred eighty-seven".