55552550025 has 48 divisors (see below), whose sum is σ = 105147270144. Its totient is φ = 25352047680.

The previous prime is 55552550023. The next prime is 55552550029. The reversal of 55552550025 is 52005525555.

It is not a de Polignac number, because 55552550025 - 2¹ = 55552550023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55552550021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218044 + ... + 398306.

It is an arithmetic number, because the mean of its divisors is an integer number (2190568128).

Almost surely, 2^55552550025 is an apocalyptic number.

It is an amenable number.

55552550025 is a deficient number, since it is larger than the sum of its proper divisors (49594720119).

55552550025 is a wasteful number, since it uses less digits than its factorization.

55552550025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180870 (or 180865 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 39.

It can be divided in two parts, 555525 and 50025, that added together give a triangular number (605550 = T₁₁₀₀).

The spelling of 55552550025 in words is "fifty-five billion, five hundred fifty-two million, five hundred fifty thousand, twenty-five".