5551479531 has 32 divisors (see below), whose sum is σ = 8864331840. Its totient is φ = 3413491200.

The previous prime is 5551479529. The next prime is 5551479559. The reversal of 5551479531 is 1359741555.

5551479531 is a `hidden beast` number, since 5 + 551 + 4 + 7 + 95 + 3 + 1 = 666.

It is not a de Polignac number, because 5551479531 - 2¹ = 5551479529 is a prime.

It is a super-2 number, since 2×5551479531² = 61637849966223959922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5551479511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471901 + ... + 483521.

It is an arithmetic number, because the mean of its divisors is an integer number (277010370).

Almost surely, 2^5551479531 is an apocalyptic number.

5551479531 is a deficient number, since it is larger than the sum of its proper divisors (3312852309).

5551479531 is a wasteful number, since it uses less digits than its factorization.

5551479531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004 (or 12998 counting only the distinct ones).

The product of its digits is 472500, while the sum is 45.

The square root of 5551479531 is about 74508.2514289525. The cubic root of 5551479531 is about 1770.6643670890.

The spelling of 5551479531 in words is "five billion, five hundred fifty-one million, four hundred seventy-nine thousand, five hundred thirty-one".