5455172787 has 4 divisors (see below), whose sum is σ = 7273563720. Its totient is φ = 3636781856.

The previous prime is 5455172747. The next prime is 5455172791. The reversal of 5455172787 is 7872715545.

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

It is a cyclic number.

It is not a de Polignac number, because 5455172787 - 2⁸ = 5455172531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5455172747) 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, 909195462 + ... + 909195467.

It is an arithmetic number, because the mean of its divisors is an integer number (1818390930).

Almost surely, 2^5455172787 is an apocalyptic number.

5455172787 is a deficient number, since it is larger than the sum of its proper divisors (1818390933).

5455172787 is a wasteful number, since it uses less digits than its factorization.

5455172787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818390932.

The product of its digits is 2744000, while the sum is 51.

The square root of 5455172787 is about 73859.1415262864. The cubic root of 5455172787 is about 1760.3654530148.

The spelling of 5455172787 in words is "five billion, four hundred fifty-five million, one hundred seventy-two thousand, seven hundred eighty-seven".