55478325 has 24 divisors (see below), whose sum is σ = 104828608. Its totient is φ = 25361280.

The previous prime is 55478263. The next prime is 55478329. The reversal of 55478325 is 52387455.

It is not a de Polignac number, because 55478325 - 2⁶ = 55478261 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 (55478329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52312 + ... + 53361.

Almost surely, 2^55478325 is an apocalyptic number.

It is an amenable number.

55478325 is a deficient number, since it is larger than the sum of its proper divisors (49350283).

55478325 is a wasteful number, since it uses less digits than its factorization.

55478325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105693 (or 105688 counting only the distinct ones).

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

The square root of 55478325 is about 7448.3773400654. The cubic root of 55478325 is about 381.3945183547.

The spelling of 55478325 in words is "fifty-five million, four hundred seventy-eight thousand, three hundred twenty-five".