5551513031 has 4 divisors (see below), whose sum is σ = 5584755792. Its totient is φ = 5518270272.

The previous prime is 5551513003. The next prime is 5551513057. The reversal of 5551513031 is 1303151555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5551513031 - 2²² = 5547318727 is a prime.

It is a super-2 number, since 2×5551513031² = 61638593866725613922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5551512985 and 5551513003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551513061) 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 3 ways as a sum of consecutive naturals, for example, 16621130 + ... + 16621463.

It is an arithmetic number, because the mean of its divisors is an integer number (1396188948).

Almost surely, 2^5551513031 is an apocalyptic number.

5551513031 is a deficient number, since it is larger than the sum of its proper divisors (33242761).

5551513031 is a wasteful number, since it uses less digits than its factorization.

5551513031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33242760.

The product of its (nonzero) digits is 5625, while the sum is 29.

The square root of 5551513031 is about 74508.4762359290. The cubic root of 5551513031 is about 1770.6679287304.

Adding to 5551513031 its reverse (1303151555), we get a palindrome (6854664586).

The spelling of 5551513031 in words is "five billion, five hundred fifty-one million, five hundred thirteen thousand, thirty-one".