1550873242551 has 16 divisors (see below), whose sum is σ = 2112486105600. Its totient is φ = 1011601660608.

The previous prime is 1550873242531. The next prime is 1550873242561. The reversal of 1550873242551 is 1552423780551.

It is not a de Polignac number, because 1550873242551 - 2²⁷ = 1550739024823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1550873242551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550873242531) 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, 1261321 + ... + 2166258.

It is an arithmetic number, because the mean of its divisors is an integer number (132030381600).

Almost surely, 2^{1550873242551} is an apocalyptic number.

1550873242551 is a deficient number, since it is larger than the sum of its proper divisors (561612863049).

1550873242551 is a wasteful number, since it uses less digits than its factorization.

1550873242551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430838.

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 1550873242551 in words is "one trillion, five hundred fifty billion, eight hundred seventy-three million, two hundred forty-two thousand, five hundred fifty-one".