5551545541251 has 16 divisors (see below), whose sum is σ = 7453569021696. Its totient is φ = 3675365481696.

The previous prime is 5551545541247. The next prime is 5551545541253. The reversal of 5551545541251 is 1521455451555.

It is not a de Polignac number, because 5551545541251 - 2² = 5551545541247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5551545541251.

It is not an unprimeable number, because it can be changed into a prime (5551545541253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10909815 + ... + 11407328.

It is an arithmetic number, because the mean of its divisors is an integer number (465848063856).

Almost surely, 2^{5551545541251} is an apocalyptic number.

5551545541251 is a deficient number, since it is larger than the sum of its proper divisors (1902023480445).

5551545541251 is a wasteful number, since it uses less digits than its factorization.

5551545541251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22317722.

The product of its digits is 2500000, while the sum is 48.

The spelling of 5551545541251 in words is "five trillion, five hundred fifty-one billion, five hundred forty-five million, five hundred forty-one thousand, two hundred fifty-one".