55253403502 has 32 divisors (see below), whose sum is σ = 96151367520. Its totient is φ = 23534561280.

The previous prime is 55253403487. The next prime is 55253403523. The reversal of 55253403502 is 20530435255.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236923 + ... + 408214.

It is an arithmetic number, because the mean of its divisors is an integer number (3004730235).

Almost surely, 2^55253403502 is an apocalyptic number.

55253403502 is a deficient number, since it is larger than the sum of its proper divisors (40897964018).

55253403502 is a wasteful number, since it uses less digits than its factorization.

55253403502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645396.

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 55253403502 its reverse (20530435255), we get a palindrome (75783838757).

The spelling of 55253403502 in words is "fifty-five billion, two hundred fifty-three million, four hundred three thousand, five hundred two".