5551555501 has 8 divisors (see below), whose sum is σ = 5590595808. Its totient is φ = 5512650000.

The previous prime is 5551555481. The next prime is 5551555519. The reversal of 5551555501 is 1055551555.

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 5551555501 - 2⁵ = 5551555469 is a prime.

It is a super-2 number, since 2×5551555501² = 61639536961366722002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551555531) 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, 49671 + ... + 116491.

It is an arithmetic number, because the mean of its divisors is an integer number (698824476).

Almost surely, 2^5551555501 is an apocalyptic number.

It is an amenable number.

5551555501 is a deficient number, since it is larger than the sum of its proper divisors (39040307).

5551555501 is a wasteful number, since it uses less digits than its factorization.

5551555501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67403.

The product of its (nonzero) digits is 78125, while the sum is 37.

The square root of 5551555501 is about 74508.7612365150. The cubic root of 5551555501 is about 1770.6724440205.

The spelling of 5551555501 in words is "five billion, five hundred fifty-one million, five hundred fifty-five thousand, five hundred one".