5538187551 has 8 divisors (see below), whose sum is σ = 7952269360. Its totient is φ = 3408115392.

The previous prime is 5538187531. The next prime is 5538187573. The reversal of 5538187551 is 1557818355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5538187551 - 2⁷ = 5538187423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5538187551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538187531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71002366 + ... + 71002443.

It is an arithmetic number, because the mean of its divisors is an integer number (994033670).

Almost surely, 2^5538187551 is an apocalyptic number.

5538187551 is a deficient number, since it is larger than the sum of its proper divisors (2414081809).

5538187551 is a wasteful number, since it uses less digits than its factorization.

5538187551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142004825.

The product of its digits is 840000, while the sum is 48.

The square root of 5538187551 is about 74418.9999328129. Note that the first 4 decimals coincide. The cubic root of 5538187551 is about 1769.2500627796.

The spelling of 5538187551 in words is "five billion, five hundred thirty-eight million, one hundred eighty-seven thousand, five hundred fifty-one".