5551406005 has 8 divisors (see below), whose sum is σ = 6662087352. Its totient is φ = 4440858048.

The previous prime is 5551405999. The next prime is 5551406009. The reversal of 5551406005 is 5006041555.

It can be written as a sum of positive squares in 4 ways, for example, as 1859506884 + 3691899121 = 43122^2 + 60761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5551406005 - 2⁵ = 5551405973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551406009) 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, 143079 + ... + 177691.

It is an arithmetic number, because the mean of its divisors is an integer number (832760919).

Almost surely, 2^5551406005 is an apocalyptic number.

It is an amenable number.

5551406005 is a deficient number, since it is larger than the sum of its proper divisors (1110681347).

5551406005 is a wasteful number, since it uses less digits than its factorization.

5551406005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66695.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 5551406005 is about 74507.7580188802. The cubic root of 5551406005 is about 1770.6565499271.

The spelling of 5551406005 in words is "five billion, five hundred fifty-one million, four hundred six thousand, five".