55115425 has 12 divisors (see below), whose sum is σ = 68456556. Its totient is φ = 44019200.

The previous prime is 55115419. The next prime is 55115441. The reversal of 55115425 is 52451155.

It can be written as a sum of positive squares in 6 ways, for example, as 24512401 + 30603024 = 4951^2 + 5532^2 .

It is not a de Polignac number, because 55115425 - 2¹³ = 55107233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55115393 and 55115402.

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, 17577 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (5704713).

Almost surely, 2^55115425 is an apocalyptic number.

It is an amenable number.

55115425 is a deficient number, since it is larger than the sum of its proper divisors (13341131).

55115425 is a wasteful number, since it uses less digits than its factorization.

55115425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668 (or 3663 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 55115425 is about 7423.9763604149. The cubic root of 55115425 is about 380.5610940008.

The spelling of 55115425 in words is "fifty-five million, one hundred fifteen thousand, four hundred twenty-five".