53292139 has 4 divisors (see below), whose sum is σ = 53311320. Its totient is φ = 53272960.

The previous prime is 53292137. The next prime is 53292143. The reversal of 53292139 is 93129235.

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 53292139 - 2¹ = 53292137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53292133) 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, 4534 + ... + 11275.

It is an arithmetic number, because the mean of its divisors is an integer number (13327830).

Almost surely, 2^53292139 is an apocalyptic number.

53292139 is a deficient number, since it is larger than the sum of its proper divisors (19181).

53292139 is a wasteful number, since it uses less digits than its factorization.

53292139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19180.

The product of its digits is 14580, while the sum is 34.

The square root of 53292139 is about 7300.1465053792. The cubic root of 53292139 is about 376.3174732103.

The spelling of 53292139 in words is "fifty-three million, two hundred ninety-two thousand, one hundred thirty-nine".