553213631 has 4 divisors (see below), whose sum is σ = 571059264. Its totient is φ = 535368000.

The previous prime is 553213613. The next prime is 553213667. The reversal of 553213631 is 136312355.

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 553213631 - 2⁶ = 553213567 is a prime.

It is a super-2 number, since 2×553213631² = 612090643048408322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553213594 and 553213603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553213681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8922770 + ... + 8922831.

It is an arithmetic number, because the mean of its divisors is an integer number (142764816).

Almost surely, 2^553213631 is an apocalyptic number.

553213631 is a deficient number, since it is larger than the sum of its proper divisors (17845633).

553213631 is a wasteful number, since it uses less digits than its factorization.

553213631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17845632.

The product of its digits is 8100, while the sum is 29.

The square root of 553213631 is about 23520.4938511078. The cubic root of 553213631 is about 820.9139279627.

Adding to 553213631 its reverse (136312355), we get a palindrome (689525986).

The spelling of 553213631 in words is "five hundred fifty-three million, two hundred thirteen thousand, six hundred thirty-one".