551232907 has 2 divisors, whose sum is σ = 551232908. Its totient is φ = 551232906.

The previous prime is 551232893. The next prime is 551232949. The reversal of 551232907 is 709232155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551232907 is a prime.

It is not a weakly prime, because it can be changed into another prime (551232977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275616453 + 275616454.

It is an arithmetic number, because the mean of its divisors is an integer number (275616454).

Almost surely, 2^551232907 is an apocalyptic number.

551232907 is a deficient number, since it is larger than the sum of its proper divisors (1).

551232907 is an equidigital number, since it uses as much as digits as its factorization.

551232907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 551232907 is about 23478.3497503551. The cubic root of 551232907 is about 819.9330239764.

The spelling of 551232907 in words is "five hundred fifty-one million, two hundred thirty-two thousand, nine hundred seven".