551400131 has 4 divisors (see below), whose sum is σ = 569187264. Its totient is φ = 533613000.

The previous prime is 551400079. The next prime is 551400133. The reversal of 551400131 is 131004155.

551400131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551400131 - 2⁶ = 551400067 is a prime.

It is a super-2 number, since 2×551400131² = 608084208933634322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551400133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8893520 + ... + 8893581.

It is an arithmetic number, because the mean of its divisors is an integer number (142296816).

Almost surely, 2^551400131 is an apocalyptic number.

551400131 is a deficient number, since it is larger than the sum of its proper divisors (17787133).

551400131 is a wasteful number, since it uses less digits than its factorization.

551400131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17787132.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 551400131 is about 23481.9107186788. The cubic root of 551400131 is about 820.0159282054.

Adding to 551400131 its reverse (131004155), we get a palindrome (682404286).

The spelling of 551400131 in words is "five hundred fifty-one million, four hundred thousand, one hundred thirty-one".