55350531 has 24 divisors (see below), whose sum is σ = 85388160. Its totient is φ = 34473600.

The previous prime is 55350523. The next prime is 55350541. The reversal of 55350531 is 13505355.

It is not a de Polignac number, because 55350531 - 2³ = 55350523 is a prime.

It is a super-2 number, since 2×55350531² = 6127362563963922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55350495 and 55350504.

It is not an unprimeable number, because it can be changed into a prime (55350541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4671 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (3557840).

Almost surely, 2^55350531 is an apocalyptic number.

55350531 is a deficient number, since it is larger than the sum of its proper divisors (30037629).

55350531 is a wasteful number, since it uses less digits than its factorization.

55350531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907 (or 6904 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 55350531 is about 7439.7937471411. The cubic root of 55350531 is about 381.1014465223.

Adding to 55350531 its reverse (13505355), we get a palindrome (68855886).

It can be divided in two parts, 553505 and 31, that added together give a square (553536 = 744²).

The spelling of 55350531 in words is "fifty-five million, three hundred fifty thousand, five hundred thirty-one".