551051207 has 12 divisors (see below), whose sum is σ = 641567376. Its totient is φ = 471925440.

The previous prime is 551051203. The next prime is 551051213. The reversal of 551051207 is 702150155.

It is a happy number.

It is not a de Polignac number, because 551051207 - 2² = 551051203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551051203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62558 + ... + 70820.

It is an arithmetic number, because the mean of its divisors is an integer number (53463948).

Almost surely, 2^551051207 is an apocalyptic number.

551051207 is a deficient number, since it is larger than the sum of its proper divisors (90516169).

551051207 is a wasteful number, since it uses less digits than its factorization.

551051207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638 (or 9631 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 551051207 is about 23474.4799090416. The cubic root of 551051207 is about 819.8429240078.

The spelling of 551051207 in words is "five hundred fifty-one million, fifty-one thousand, two hundred seven".