5445236557 has 2 divisors, whose sum is σ = 5445236558. Its totient is φ = 5445236556.

The previous prime is 5445236551. The next prime is 5445236579. The reversal of 5445236557 is 7556325445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3846356361 + 1598880196 = 62019^2 + 39986^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445236557 - 2³ = 5445236549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5445236551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722618278 + 2722618279.

It is an arithmetic number, because the mean of its divisors is an integer number (2722618279).

Almost surely, 2^5445236557 is an apocalyptic number.

It is an amenable number.

5445236557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445236557 is an equidigital number, since it uses as much as digits as its factorization.

5445236557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520000, while the sum is 46.

The square root of 5445236557 is about 73791.8461416978. The cubic root of 5445236557 is about 1759.2960077214.

The spelling of 5445236557 in words is "five billion, four hundred forty-five million, two hundred thirty-six thousand, five hundred fifty-seven".