53959139 has 8 divisors (see below), whose sum is σ = 61528320. Its totient is φ = 46878336.

The previous prime is 53959117. The next prime is 53959159. The reversal of 53959139 is 93195935.

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

It is a cyclic number.

It is not a de Polignac number, because 53959139 - 2¹⁶ = 53893603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53959139.

It is not an unprimeable number, because it can be changed into a prime (53959159) 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, 121859 + ... + 122300.

It is an arithmetic number, because the mean of its divisors is an integer number (7691040).

Almost surely, 2^53959139 is an apocalyptic number.

53959139 is a deficient number, since it is larger than the sum of its proper divisors (7569181).

53959139 is a wasteful number, since it uses less digits than its factorization.

53959139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244189.

The product of its digits is 164025, while the sum is 44.

The square root of 53959139 is about 7345.6884633096. The cubic root of 53959139 is about 377.8809545525.

The spelling of 53959139 in words is "fifty-three million, nine hundred fifty-nine thousand, one hundred thirty-nine".