55141578 has 24 divisors (see below), whose sum is σ = 120338400. Its totient is φ = 18247464.

The previous prime is 55141573. The next prime is 55141589. The reversal of 55141578 is 87514155.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55141573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8518 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (5014100).

Almost surely, 2^55141578 is an apocalyptic number.

55141578 is an abundant number, since it is smaller than the sum of its proper divisors (65196822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55141578 is a wasteful number, since it uses less digits than its factorization.

55141578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22186 (or 22183 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 55141578 is about 7425.7375391270. The cubic root of 55141578 is about 380.6212782442.

The spelling of 55141578 in words is "fifty-five million, one hundred forty-one thousand, five hundred seventy-eight".