551932129 has 12 divisors (see below), whose sum is σ = 642426708. Its totient is φ = 472802400.

The previous prime is 551932123. The next prime is 551932163. The reversal of 551932129 is 921239155.

It can be written as a sum of positive squares in 2 ways, for example, as 122323600 + 429608529 = 11060^2 + 20727^2 .

It is a de Polignac number, because none of the positive numbers 2^k-551932129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551932123) 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 11 ways as a sum of consecutive naturals, for example, 154099 + ... + 157639.

It is an arithmetic number, because the mean of its divisors is an integer number (53535559).

Almost surely, 2^551932129 is an apocalyptic number.

It is an amenable number.

551932129 is a deficient number, since it is larger than the sum of its proper divisors (90494579).

551932129 is a wasteful number, since it uses less digits than its factorization.

551932129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736 (or 6729 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 551932129 is about 23493.2358137401. The cubic root of 551932129 is about 820.2795641058.

The spelling of 551932129 in words is "five hundred fifty-one million, nine hundred thirty-two thousand, one hundred twenty-nine".