53388629 has 4 divisors (see below), whose sum is σ = 61015584. Its totient is φ = 45761676.

The previous prime is 53388611. The next prime is 53388631. The reversal of 53388629 is 92688335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53388629 - 2¹² = 53384533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53388629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53388659) 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, 3813467 + ... + 3813480.

It is an arithmetic number, because the mean of its divisors is an integer number (15253896).

Almost surely, 2^53388629 is an apocalyptic number.

It is an amenable number.

53388629 is a deficient number, since it is larger than the sum of its proper divisors (7626955).

53388629 is an equidigital number, since it uses as much as digits as its factorization.

53388629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626954.

The product of its digits is 311040, while the sum is 44.

The square root of 53388629 is about 7306.7522881236. The cubic root of 53388629 is about 376.5444546566.

The spelling of 53388629 in words is "fifty-three million, three hundred eighty-eight thousand, six hundred twenty-nine".