53642178 has 12 divisors (see below), whose sum is σ = 116224758. Its totient is φ = 17880720.

The previous prime is 53642167. The next prime is 53642179. The reversal of 53642178 is 87124635.

53642178 is a `hidden beast` number, since 5 + 3 + 642 + 1 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42732369 + 10909809 = 6537^2 + 3303^2 .

It is not an unprimeable number, because it can be changed into a prime (53642179) 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, 1490043 + ... + 1490078.

Almost surely, 2^53642178 is an apocalyptic number.

53642178 is an abundant number, since it is smaller than the sum of its proper divisors (62582580).

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

53642178 is a wasteful number, since it uses less digits than its factorization.

53642178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980129 (or 2980126 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 53642178 is about 7324.0820585245. The cubic root of 53642178 is about 377.1395984321.

The spelling of 53642178 in words is "fifty-three million, six hundred forty-two thousand, one hundred seventy-eight".