551375380281 has 16 divisors (see below), whose sum is σ = 809941157568. Its totient is φ = 330858312000.

The previous prime is 551375380279. The next prime is 551375380411. The reversal of 551375380281 is 182083573155.

It is not a de Polignac number, because 551375380281 - 2¹ = 551375380279 is a prime.

It is a super-2 number, since 2×551375380281² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551375380281.

It is not an unprimeable number, because it can be changed into a prime (551375380081) 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, 82711246 + ... + 82717911.

It is an arithmetic number, because the mean of its divisors is an integer number (50621322348).

Almost surely, 2^551375380281 is an apocalyptic number.

It is an amenable number.

551375380281 is a deficient number, since it is larger than the sum of its proper divisors (258565777287).

551375380281 is a wasteful number, since it uses less digits than its factorization.

551375380281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165429272.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 551375380281 in words is "five hundred fifty-one billion, three hundred seventy-five million, three hundred eighty thousand, two hundred eighty-one".