55215330524 has 24 divisors (see below), whose sum is σ = 96749016000. Its totient is φ = 27572783616.

The previous prime is 55215330509. The next prime is 55215330529. The reversal of 55215330524 is 42503351255.

It is a super-2 number, since 2×55215330524² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55215330529) 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 7 ways as a sum of consecutive naturals, for example, 19324904 + ... + 19327760.

It is an arithmetic number, because the mean of its divisors is an integer number (4031209000).

Almost surely, 2^55215330524 is an apocalyptic number.

It is an amenable number.

55215330524 is a deficient number, since it is larger than the sum of its proper divisors (41533685476).

55215330524 is a wasteful number, since it uses less digits than its factorization.

55215330524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277 (or 7275 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 55215330524 its reverse (42503351255), we get a palindrome (97718681779).

The spelling of 55215330524 in words is "fifty-five billion, two hundred fifteen million, three hundred thirty thousand, five hundred twenty-four".