53000440139 has 4 divisors (see below), whose sum is σ = 53001947856. Its totient is φ = 52998932424.

The previous prime is 53000440121. The next prime is 53000440151. The reversal of 53000440139 is 93104400035.

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

It is a cyclic number.

It is not a de Polignac number, because 53000440139 - 2⁸ = 53000439883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53000440639) 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, 699839 + ... + 771864.

It is an arithmetic number, because the mean of its divisors is an integer number (13250486964).

Almost surely, 2^53000440139 is an apocalyptic number.

53000440139 is a deficient number, since it is larger than the sum of its proper divisors (1507717).

53000440139 is a wasteful number, since it uses less digits than its factorization.

53000440139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507716.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 53000440139 in words is "fifty-three billion, four hundred forty thousand, one hundred thirty-nine".