55125025729 has 4 divisors (see below), whose sum is σ = 55630760020. Its totient is φ = 54619291440.

The previous prime is 55125025651. The next prime is 55125025751. The reversal of 55125025729 is 92752052155.

55125025729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37538287504 + 17586738225 = 193748^2 + 132615^2 .

It is a cyclic number.

It is not a de Polignac number, because 55125025729 - 2¹⁹ = 55124501441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55125025759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252866982 + ... + 252867199.

It is an arithmetic number, because the mean of its divisors is an integer number (13907690005).

Almost surely, 2^55125025729 is an apocalyptic number.

It is an amenable number.

55125025729 is a deficient number, since it is larger than the sum of its proper divisors (505734291).

55125025729 is a wasteful number, since it uses less digits than its factorization.

55125025729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505734290.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 55125025729 in words is "fifty-five billion, one hundred twenty-five million, twenty-five thousand, seven hundred twenty-nine".