53751330 has 64 divisors (see below), whose sum is σ = 144132480. Its totient is φ = 14254272.

The previous prime is 53751329. The next prime is 53751349. The reversal of 53751330 is 3315735.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 53751294 and 53751303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60852 + ... + 61728.

It is an arithmetic number, because the mean of its divisors is an integer number (2252070).

Almost surely, 2^53751330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53751330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72066240).

53751330 is an abundant number, since it is smaller than the sum of its proper divisors (90381150).

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

53751330 is a wasteful number, since it uses less digits than its factorization.

53751330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 53751330 is about 7331.5298539936. The cubic root of 53751330 is about 377.3952284423.

The spelling of 53751330 in words is "fifty-three million, seven hundred fifty-one thousand, three hundred thirty".