551040451 has 16 divisors (see below), whose sum is σ = 639908640. Its totient is φ = 470119680.

The previous prime is 551040439. The next prime is 551040461. The reversal of 551040451 is 154040155.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551040451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551040401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17080 + ... + 37333.

It is an arithmetic number, because the mean of its divisors is an integer number (39994290).

Almost surely, 2^551040451 is an apocalyptic number.

551040451 is a deficient number, since it is larger than the sum of its proper divisors (88868189).

551040451 is a wasteful number, since it uses less digits than its factorization.

551040451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54486.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 551040451 is about 23474.2508080663. The cubic root of 551040451 is about 819.8375897862.

The spelling of 551040451 in words is "five hundred fifty-one million, forty thousand, four hundred fifty-one".