53140379 has 4 divisors (see below), whose sum is σ = 53154960. Its totient is φ = 53125800.

The previous prime is 53140369. The next prime is 53140391. The reversal of 53140379 is 97304135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53140379 - 2¹² = 53136283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53140369) 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, 3554 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (13288740).

Almost surely, 2^53140379 is an apocalyptic number.

53140379 is a deficient number, since it is larger than the sum of its proper divisors (14581).

53140379 is an equidigital number, since it uses as much as digits as its factorization.

53140379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 53140379 is about 7289.7447829125. The cubic root of 53140379 is about 375.9599205619.

The spelling of 53140379 in words is "fifty-three million, one hundred forty thousand, three hundred seventy-nine".