55578895 has 8 divisors (see below), whose sum is σ = 70205040. Its totient is φ = 42122880.

The previous prime is 55578893. The next prime is 55578917. The reversal of 55578895 is 59887555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55578895 - 2¹ = 55578893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55578893) 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, 292426 + ... + 292615.

It is an arithmetic number, because the mean of its divisors is an integer number (8775630).

Almost surely, 2^55578895 is an apocalyptic number.

55578895 is a deficient number, since it is larger than the sum of its proper divisors (14626145).

55578895 is a wasteful number, since it uses less digits than its factorization.

55578895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585065.

The product of its digits is 2520000, while the sum is 52.

The square root of 55578895 is about 7455.1254181268. The cubic root of 55578895 is about 381.6248406924.

The spelling of 55578895 in words is "fifty-five million, five hundred seventy-eight thousand, eight hundred ninety-five".