5525619881 has 4 divisors (see below), whose sum is σ = 5816442000. Its totient is φ = 5234797764.

The previous prime is 5525619833. The next prime is 5525619899. The reversal of 5525619881 is 1889165255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5525619881 - 2⁶ = 5525619817 is a prime.

It is a super-2 number, since 2×5525619881² = 61064950138604908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5525619821) 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, 145411031 + ... + 145411068.

It is an arithmetic number, because the mean of its divisors is an integer number (1454110500).

Almost surely, 2^5525619881 is an apocalyptic number.

It is an amenable number.

5525619881 is a deficient number, since it is larger than the sum of its proper divisors (290822119).

5525619881 is a wasteful number, since it uses less digits than its factorization.

5525619881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290822118.

The product of its digits is 864000, while the sum is 50.

The square root of 5525619881 is about 74334.5133904837. The cubic root of 5525619881 is about 1767.9107442545.

The spelling of 5525619881 in words is "five billion, five hundred twenty-five million, six hundred nineteen thousand, eight hundred eighty-one".