53978798 has 16 divisors (see below), whose sum is σ = 82324320. Its totient is φ = 26541216.

The previous prime is 53978797. The next prime is 53978809. The reversal of 53978798 is 89787935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53978797) 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, 31508 + ... + 33176.

It is an arithmetic number, because the mean of its divisors is an integer number (5145270).

Almost surely, 2^53978798 is an apocalyptic number.

53978798 is a deficient number, since it is larger than the sum of its proper divisors (28345522).

53978798 is a wasteful number, since it uses less digits than its factorization.

53978798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 3810240, while the sum is 56.

The square root of 53978798 is about 7347.0264733428. The cubic root of 53978798 is about 377.9268402593.

The spelling of 53978798 in words is "fifty-three million, nine hundred seventy-eight thousand, seven hundred ninety-eight".