53501330 has 16 divisors (see below), whose sum is σ = 96617664. Its totient is φ = 21330480.

The previous prime is 53501311. The next prime is 53501339. The reversal of 53501330 is 3310535.

53501330 = 2106² + 2107² + ... + 2117².

It is not an unprimeable number, because it can be changed into a prime (53501339) 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, 5492 + ... + 11711.

It is an arithmetic number, because the mean of its divisors is an integer number (6038604).

Almost surely, 2^53501330 is an apocalyptic number.

53501330 is a deficient number, since it is larger than the sum of its proper divisors (43116334).

53501330 is a wasteful number, since it uses less digits than its factorization.

53501330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17521.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 53501330 is about 7314.4603355272. The cubic root of 53501330 is about 376.8092245868.

Adding to 53501330 its reverse (3310535), we get a palindrome (56811865).

The spelling of 53501330 in words is "fifty-three million, five hundred one thousand, three hundred thirty".