5551406138 has 16 divisors (see below), whose sum is σ = 8470065024. Its totient is φ = 2728120560.

The previous prime is 5551406137. The next prime is 5551406197. The reversal of 5551406138 is 8316041555.

It is a super-2 number, since 2×5551406138² = 61636220218048150088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5551406137) 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, 150131 + ... + 183417.

It is an arithmetic number, because the mean of its divisors is an integer number (529379064).

Almost surely, 2^5551406138 is an apocalyptic number.

5551406138 is a deficient number, since it is larger than the sum of its proper divisors (2918658886).

5551406138 is a wasteful number, since it uses less digits than its factorization.

5551406138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34717.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 5551406138 is about 74507.7589114047. The cubic root of 5551406138 is about 1770.6565640675.

The spelling of 5551406138 in words is "five billion, five hundred fifty-one million, four hundred six thousand, one hundred thirty-eight".