551202101 has 16 divisors (see below), whose sum is σ = 608232240. Its totient is φ = 497172480.

The previous prime is 551202097. The next prime is 551202109. The reversal of 551202101 is 101202155.

551202101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10407076 + 540795025 = 3226^2 + 23255^2 .

It is not a de Polignac number, because 551202101 - 2² = 551202097 is a prime.

It is a super-2 number, since 2×551202101² = 607647512293628402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551202109) 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, 63461 + ... + 71621.

It is an arithmetic number, because the mean of its divisors is an integer number (38014515).

Almost surely, 2^551202101 is an apocalyptic number.

It is an amenable number.

551202101 is a deficient number, since it is larger than the sum of its proper divisors (57030139).

551202101 is a wasteful number, since it uses less digits than its factorization.

551202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 551202101 is about 23477.6936899688. The cubic root of 551202101 is about 819.9177495332.

Adding to 551202101 its reverse (101202155), we get a palindrome (652404256).

The spelling of 551202101 in words is "five hundred fifty-one million, two hundred two thousand, one hundred one".