53987078 has 8 divisors (see below), whose sum is σ = 82955880. Its totient is φ = 26335120.

The previous prime is 53987071. The next prime is 53987083. The reversal of 53987078 is 87078935.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53987071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329108 + ... + 329271.

It is an arithmetic number, because the mean of its divisors is an integer number (10369485).

Almost surely, 2^53987078 is an apocalyptic number.

53987078 is a deficient number, since it is larger than the sum of its proper divisors (28968802).

53987078 is a wasteful number, since it uses less digits than its factorization.

53987078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658422.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 53987078 is about 7347.5899450092. The cubic root of 53987078 is about 377.9461631192.

The spelling of 53987078 in words is "fifty-three million, nine hundred eighty-seven thousand, seventy-eight".