53987079 has 4 divisors (see below), whose sum is σ = 71982776. Its totient is φ = 35991384.

The previous prime is 53987071. The next prime is 53987083. The reversal of 53987079 is 97078935.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53987079 - 2³ = 53987071 is a prime.

It is a Duffinian number.

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, 8997844 + ... + 8997849.

It is an arithmetic number, because the mean of its divisors is an integer number (17995694).

Almost surely, 2^53987079 is an apocalyptic number.

53987079 is a deficient number, since it is larger than the sum of its proper divisors (17995697).

53987079 is a wasteful number, since it uses less digits than its factorization.

53987079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17995696.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 53987079 is about 7347.5900130587. The cubic root of 53987079 is about 377.9461654527.

The spelling of 53987079 in words is "fifty-three million, nine hundred eighty-seven thousand, seventy-nine".