551272201 has 2 divisors, whose sum is σ = 551272202. Its totient is φ = 551272200.

The previous prime is 551272157. The next prime is 551272217. The reversal of 551272201 is 102272155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550371600 + 900601 = 23460^2 + 949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551272201 is a prime.

It is not a weakly prime, because it can be changed into another prime (551272231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275636100 + 275636101.

It is an arithmetic number, because the mean of its divisors is an integer number (275636101).

Almost surely, 2^551272201 is an apocalyptic number.

It is an amenable number.

551272201 is a deficient number, since it is larger than the sum of its proper divisors (1).

551272201 is an equidigital number, since it uses as much as digits as its factorization.

551272201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 551272201 is about 23479.1865489416. The cubic root of 551272201 is about 819.9525061725.

The spelling of 551272201 in words is "five hundred fifty-one million, two hundred seventy-two thousand, two hundred one".