55128754025 has 12 divisors (see below), whose sum is σ = 70207214412. Its totient is φ = 42911029440.

The previous prime is 55128754013. The next prime is 55128754061. The reversal of 55128754025 is 52045782155.

It can be written as a sum of positive squares in 6 ways, for example, as 97693456 + 55031060569 = 9884^2 + 234587^2 .

It is not a de Polignac number, because 55128754025 - 2⁸ = 55128753769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29798402 + ... + 29800251.

It is an arithmetic number, because the mean of its divisors is an integer number (5850601201).

Almost surely, 2^55128754025 is an apocalyptic number.

It is an amenable number.

55128754025 is a deficient number, since it is larger than the sum of its proper divisors (15078460387).

55128754025 is a wasteful number, since it uses less digits than its factorization.

55128754025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59598700 (or 59598695 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 44.

The spelling of 55128754025 in words is "fifty-five billion, one hundred twenty-eight million, seven hundred fifty-four thousand, twenty-five".