53219040 has 192 divisors, whose sum is σ = 196245504. Its totient is φ = 11870208.

The previous prime is 53219039. The next prime is 53219071. The reversal of 53219040 is 4091235.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 53219040.

It is a congruent number.

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, 157752 + ... + 158088.

It is an arithmetic number, because the mean of its divisors is an integer number (1022112).

Almost surely, 2^53219040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53219040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98122752).

53219040 is an abundant number, since it is smaller than the sum of its proper divisors (143026464).

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

53219040 is a wasteful number, since it uses less digits than its factorization.

53219040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 53219040 is about 7295.1381069860. The cubic root of 53219040 is about 376.1453338883.

The spelling of 53219040 in words is "fifty-three million, two hundred nineteen thousand, forty".