554135531 has 4 divisors (see below), whose sum is σ = 555332832.
Its totient is φ = 552938232.
The previous prime is 554135479. The next prime is 554135537. The reversal of 554135531 is 135531455.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-554135531 is a prime.
It is a super-2 number, since 2×5541355312 = 614132373433303922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (554135537) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597956 + ... + 598881.
It is an arithmetic number, because the mean of its divisors is an integer number (138833208).
Almost surely, 2554135531 is an apocalyptic number.
554135531 is a deficient number, since it is larger than the sum of its proper divisors (1197301).
554135531 is a wasteful number, since it uses less digits than its factorization.
554135531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1197300.
The product of its digits is 22500, while the sum is 32.
The square root of 554135531 is about 23540.0834960286.
The cubic root of 554135531 is about 821.3696774886.
Adding to 554135531 its reverse (135531455), we get a palindrome (689666986).
The spelling of 554135531 in words is "five hundred fifty-four million, one hundred thirty-five thousand, five hundred thirty-one".