5445212511 has 4 divisors (see below), whose sum is σ = 7260283352. Its totient is φ = 3630141672.

The previous prime is 5445212491. The next prime is 5445212537. The reversal of 5445212511 is 1152125445.

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

It is a de Polignac number, because none of the positive numbers 2^k-5445212511 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 (5445212551) 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, 907535416 + ... + 907535421.

It is an arithmetic number, because the mean of its divisors is an integer number (1815070838).

Almost surely, 2^5445212511 is an apocalyptic number.

5445212511 is a deficient number, since it is larger than the sum of its proper divisors (1815070841).

5445212511 is a wasteful number, since it uses less digits than its factorization.

5445212511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815070840.

The product of its digits is 8000, while the sum is 30.

The square root of 5445212511 is about 73791.6832102372. The cubic root of 5445212511 is about 1759.2934180516.

Adding to 5445212511 its reverse (1152125445), we get a palindrome (6597337956).

The spelling of 5445212511 in words is "five billion, four hundred forty-five million, two hundred twelve thousand, five hundred eleven".