55350025 has 6 divisors (see below), whose sum is σ = 68634062. Its totient is φ = 44280000.

The previous prime is 55350023. The next prime is 55350049. The reversal of 55350025 is 52005355.

It can be written as a sum of positive squares in 3 ways, for example, as 278784 + 55071241 = 528^2 + 7421^2 .

It is not a de Polignac number, because 55350025 - 2¹ = 55350023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2214001 = 55350025 / (5 + 5 + 3 + 5 + 0 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55350023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1106976 + ... + 1107025.

Almost surely, 2^55350025 is an apocalyptic number.

It is an amenable number.

55350025 is a deficient number, since it is larger than the sum of its proper divisors (13284037).

55350025 is a wasteful number, since it uses less digits than its factorization.

55350025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214011 (or 2214006 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 55350025 is about 7439.7597407443. The cubic root of 55350025 is about 381.1002852091.

The spelling of 55350025 in words is "fifty-five million, three hundred fifty thousand, twenty-five".