53646330 has 16 divisors (see below), whose sum is σ = 128751264. Its totient is φ = 14305680.

The previous prime is 53646289. The next prime is 53646331. The reversal of 53646330 is 3364635.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1788211 = 53646330 / (5 + 3 + 6 + 4 + 6 + 3 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (53646331) 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, 894076 + ... + 894135.

It is an arithmetic number, because the mean of its divisors is an integer number (8046954).

Almost surely, 2^53646330 is an apocalyptic number.

53646330 is an abundant number, since it is smaller than the sum of its proper divisors (75104934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53646330 is a wasteful number, since it uses less digits than its factorization.

53646330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788221.

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 53646330 is about 7324.3655015298. The cubic root of 53646330 is about 377.1493286063.

The spelling of 53646330 in words is "fifty-three million, six hundred forty-six thousand, three hundred thirty".