5551444372 has 12 divisors (see below), whose sum is σ = 9746068276. Its totient is φ = 2766853440.

The previous prime is 5551444363. The next prime is 5551444373. The reversal of 5551444372 is 2734441555.

It can be written as a sum of positive squares in 2 ways, for example, as 640798596 + 4910645776 = 25314^2 + 70076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551444373) 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, 2215779 + ... + 2218282.

Almost surely, 2^5551444372 is an apocalyptic number.

It is an amenable number.

5551444372 is a deficient number, since it is larger than the sum of its proper divisors (4194623904).

5551444372 is a wasteful number, since it uses less digits than its factorization.

5551444372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434378 (or 4434376 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The square root of 5551444372 is about 74508.0154882681. The cubic root of 5551444372 is about 1770.6606290513.

The spelling of 5551444372 in words is "five billion, five hundred fifty-one million, four hundred forty-four thousand, three hundred seventy-two".