1051044551 has 4 divisors (see below), whose sum is σ = 1051174152. Its totient is φ = 1050914952.

The previous prime is 1051044539. The next prime is 1051044563. The reversal of 1051044551 is 1554401501.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1051044539) and next prime (1051044563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051044551 is a prime.

It is a super-2 number, since 2×1051044551² = 2209389296373583202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1051044551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051044151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51761 + ... + 69146.

It is an arithmetic number, because the mean of its divisors is an integer number (262793538).

Almost surely, 2^1051044551 is an apocalyptic number.

1051044551 is a deficient number, since it is larger than the sum of its proper divisors (129601).

1051044551 is an equidigital number, since it uses as much as digits as its factorization.

1051044551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129600.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1051044551 is about 32419.8172573505. The cubic root of 1051044551 is about 1016.7332856940.

The spelling of 1051044551 in words is "one billion, fifty-one million, forty-four thousand, five hundred fifty-one".