551483384155 has 16 divisors (see below), whose sum is σ = 721965247200. Its totient is φ = 401065845760.

The previous prime is 551483384147. The next prime is 551483384171.

It is a happy number.

551483384155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551483384155 - 2³ = 551483384147 is a prime.

It is a super-3 number, since 3×551483384155³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1757451 + ... + 2047339.

It is an arithmetic number, because the mean of its divisors is an integer number (45122827950).

Almost surely, 2^551483384155 is an apocalyptic number.

551483384155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551483384155 is a deficient number, since it is larger than the sum of its proper divisors (170481863045).

551483384155 is a wasteful number, since it uses less digits than its factorization.

551483384155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324494.

The product of its digits is 5760000, while the sum is 52.

The spelling of 551483384155 in words is "five hundred fifty-one billion, four hundred eighty-three million, three hundred eighty-four thousand, one hundred fifty-five".