551274201 has 16 divisors (see below), whose sum is σ = 817561600. Its totient is φ = 367129584.

The previous prime is 551274197. The next prime is 551274239. The reversal of 551274201 is 102472155.

It is not a de Polignac number, because 551274201 - 2² = 551274197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551274001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16680 + ... + 37158.

It is an arithmetic number, because the mean of its divisors is an integer number (51097600).

Almost surely, 2^551274201 is an apocalyptic number.

It is an amenable number.

551274201 is a deficient number, since it is larger than the sum of its proper divisors (266287399).

551274201 is a wasteful number, since it uses less digits than its factorization.

551274201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21485 (or 21479 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 551274201 is about 23479.2291398163. The cubic root of 551274201 is about 819.9534977595.

The spelling of 551274201 in words is "five hundred fifty-one million, two hundred seventy-four thousand, two hundred one".