5551555254 has 24 divisors (see below), whose sum is σ = 12915863928. Its totient is φ = 1586158560.

The previous prime is 5551555253. The next prime is 5551555271. The reversal of 5551555254 is 4525551555.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551555253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9441127 + ... + 9441714.

It is an arithmetic number, because the mean of its divisors is an integer number (538160997).

Almost surely, 2^5551555254 is an apocalyptic number.

5551555254 is an abundant number, since it is smaller than the sum of its proper divisors (7364308674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5551555254 is a wasteful number, since it uses less digits than its factorization.

5551555254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18882860 (or 18882853 counting only the distinct ones).

The product of its digits is 625000, while the sum is 42.

The square root of 5551555254 is about 74508.7595789918. The cubic root of 5551555254 is about 1770.6724177602.

The spelling of 5551555254 in words is "five billion, five hundred fifty-one million, five hundred fifty-five thousand, two hundred fifty-four".