5538172546 has 16 divisors (see below), whose sum is σ = 8339537304. Its totient is φ = 2758339584.

The previous prime is 5538172517. The next prime is 5538172559. The reversal of 5538172546 is 6452718355.

It can be written as a sum of positive squares in 4 ways, for example, as 377330625 + 5160841921 = 19425^2 + 71839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5538172496 and 5538172505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496170 + ... + 1499866.

Almost surely, 2^5538172546 is an apocalyptic number.

5538172546 is a deficient number, since it is larger than the sum of its proper divisors (2801364758).

5538172546 is a wasteful number, since it uses less digits than its factorization.

5538172546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405.

The product of its digits is 1008000, while the sum is 46.

The square root of 5538172546 is about 74418.8991184363. The cubic root of 5538172546 is about 1769.2484649271.

It can be divided in two parts, 5538 and 172546, that added together give a square (178084 = 422²).

The spelling of 5538172546 in words is "five billion, five hundred thirty-eight million, one hundred seventy-two thousand, five hundred forty-six".