5551254521555 has 16 divisors (see below), whose sum is σ = 6730222967424. Its totient is φ = 4395228028800.

The previous prime is 5551254521479. The next prime is 5551254521563.

It is a happy number.

5551254521555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5551254521555 - 2¹⁴ = 5551254505171 is a prime.

It is a Duffinian number.

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, 1024667 + ... + 3486036.

It is an arithmetic number, because the mean of its divisors is an integer number (420638935464).

Almost surely, 2^{5551254521555} is an apocalyptic number.

5551254521555 is a deficient number, since it is larger than the sum of its proper divisors (1178968445869).

5551254521555 is a wasteful number, since it uses less digits than its factorization.

5551254521555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513246.

The product of its digits is 6250000, while the sum is 50.

The spelling of 5551254521555 in words is "five trillion, five hundred fifty-one billion, two hundred fifty-four million, five hundred twenty-one thousand, five hundred fifty-five".