1054021054551 has 16 divisors (see below), whose sum is σ = 1495583188704. Its totient is φ = 657989448704.

The previous prime is 1054021054543. The next prime is 1054021054589. The reversal of 1054021054551 is 1554501204501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1054021054551 - 2³ = 1054021054543 is a prime.

It is a super-2 number, since 2×1054021054551² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054021054531) 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, 52444470 + ... + 52464563.

It is an arithmetic number, because the mean of its divisors is an integer number (93473949294).

Almost surely, 2^{1054021054551} is an apocalyptic number.

1054021054551 is a deficient number, since it is larger than the sum of its proper divisors (441562134153).

1054021054551 is a wasteful number, since it uses less digits than its factorization.

1054021054551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104909250.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 1054021054551 in words is "one trillion, fifty-four billion, twenty-one million, fifty-four thousand, five hundred fifty-one".