55378425 has 12 divisors (see below), whose sum is σ = 91559120. Its totient is φ = 29535120.

The previous prime is 55378409. The next prime is 55378439. The reversal of 55378425 is 52487355.

55378425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55378425 - 2⁴ = 55378409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369115 + ... + 369264.

Almost surely, 2^55378425 is an apocalyptic number.

It is an amenable number.

55378425 is a deficient number, since it is larger than the sum of its proper divisors (36180695).

55378425 is a wasteful number, since it uses less digits than its factorization.

55378425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738392 (or 738387 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 55378425 is about 7441.6681597610. The cubic root of 55378425 is about 381.1654546918.

The spelling of 55378425 in words is "fifty-five million, three hundred seventy-eight thousand, four hundred twenty-five".