55380125 has 8 divisors (see below), whose sum is σ = 69114552. Its totient is φ = 44304000.

The previous prime is 55380121. The next prime is 55380151. The reversal of 55380125 is 52108355.

It can be written as a sum of positive squares in 4 ways, for example, as 10797796 + 44582329 = 3286^2 + 6677^2 .

It is not a de Polignac number, because 55380125 - 2² = 55380121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55380121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221396 + ... + 221645.

It is an arithmetic number, because the mean of its divisors is an integer number (8639319).

Almost surely, 2^55380125 is an apocalyptic number.

It is an amenable number.

55380125 is a deficient number, since it is larger than the sum of its proper divisors (13734427).

55380125 is an equidigital number, since it uses as much as digits as its factorization.

55380125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443056 (or 443046 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 55380125 is about 7441.7823805860. The cubic root of 55380125 is about 381.1693549751.

The spelling of 55380125 in words is "fifty-five million, three hundred eighty thousand, one hundred twenty-five".