551512045 has 32 divisors (see below), whose sum is σ = 802545408. Its totient is φ = 355181568.

The previous prime is 551512043. The next prime is 551512051. The reversal of 551512045 is 540215155.

It is not a de Polignac number, because 551512045 - 2¹ = 551512043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551512043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473634 + ... + 474796.

It is an arithmetic number, because the mean of its divisors is an integer number (25079544).

Almost surely, 2^551512045 is an apocalyptic number.

It is an amenable number.

551512045 is a deficient number, since it is larger than the sum of its proper divisors (251033363).

551512045 is a wasteful number, since it uses less digits than its factorization.

551512045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 551512045 is about 23484.2935810299. The cubic root of 551512045 is about 820.0714021703.

The spelling of 551512045 in words is "five hundred fifty-one million, five hundred twelve thousand, forty-five".