551434545 has 48 divisors (see below), whose sum is σ = 1004814720. Its totient is φ = 279214848.

The previous prime is 551434523. The next prime is 551434561. The reversal of 551434545 is 545434155.

It is not a de Polignac number, because 551434545 - 2¹⁶ = 551369009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141949 + ... + 145781.

It is an arithmetic number, because the mean of its divisors is an integer number (20933640).

Almost surely, 2^551434545 is an apocalyptic number.

It is an amenable number.

551434545 is a deficient number, since it is larger than the sum of its proper divisors (453380175).

551434545 is a wasteful number, since it uses less digits than its factorization.

551434545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006 (or 4003 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 551434545 is about 23482.6434840714. The cubic root of 551434545 is about 820.0329874693.

The spelling of 551434545 in words is "five hundred fifty-one million, four hundred thirty-four thousand, five hundred forty-five".