55255342532 has 72 divisors (see below), whose sum is σ = 108022650120. Its totient is φ = 24582113280.

The previous prime is 55255342523. The next prime is 55255342547. The reversal of 55255342532 is 23524355255.

It can be written as a sum of positive squares in 12 ways, for example, as 6456765316 + 48798577216 = 80354^2 + 220904^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55255342532.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7755932 + ... + 7763052.

It is an arithmetic number, because the mean of its divisors is an integer number (1500314585).

Almost surely, 2^55255342532 is an apocalyptic number.

55255342532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55255342532 is a deficient number, since it is larger than the sum of its proper divisors (52767307588).

55255342532 is a wasteful number, since it uses less digits than its factorization.

55255342532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321 (or 7282 counting only the distinct ones).

The product of its digits is 900000, while the sum is 41.

Adding to 55255342532 its reverse (23524355255), we get a palindrome (78779697787).

The spelling of 55255342532 in words is "fifty-five billion, two hundred fifty-five million, three hundred forty-two thousand, five hundred thirty-two".