5540125131 has 12 divisors (see below), whose sum is σ = 8014128408. Its totient is φ = 3688005024.

The previous prime is 5540125109. The next prime is 5540125147. The reversal of 5540125131 is 1315210455.

5540125131 is a `hidden beast` number, since 5 + 5 + 401 + 251 + 3 + 1 = 666.

It is not a de Polignac number, because 5540125131 - 2⁶ = 5540125067 is a prime.

It is a super-2 number, since 2×5540125131² = 61385972934275534322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5540125095 and 5540125104.

It is not an unprimeable number, because it can be changed into a prime (5540125231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444490 + ... + 456783.

It is an arithmetic number, because the mean of its divisors is an integer number (667844034).

Almost surely, 2^5540125131 is an apocalyptic number.

5540125131 is a deficient number, since it is larger than the sum of its proper divisors (2474003277).

5540125131 is a wasteful number, since it uses less digits than its factorization.

5540125131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901962 (or 901959 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5540125131 is about 74432.0168408730. The cubic root of 5540125131 is about 1769.4563675682.

Adding to 5540125131 its reverse (1315210455), we get a palindrome (6855335586).

The spelling of 5540125131 in words is "five billion, five hundred forty million, one hundred twenty-five thousand, one hundred thirty-one".