53395740 has 96 divisors (see below), whose sum is σ = 168947520. Its totient is φ = 13996800.

The previous prime is 53395739. The next prime is 53395781. The reversal of 53395740 is 4759335.

53395740 is a `hidden beast` number, since 53 + 39 + 574 + 0 = 666.

It is a super-2 number, since 2×53395740² = 5702210100295200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53395695 and 53395704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32130 + ... + 33750.

It is an arithmetic number, because the mean of its divisors is an integer number (1759870).

Almost surely, 2^53395740 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 53395740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84473760).

53395740 is an abundant number, since it is smaller than the sum of its proper divisors (115551780).

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

53395740 is a wasteful number, since it uses less digits than its factorization.

53395740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 53395740 is about 7307.2388766209. The cubic root of 53395740 is about 376.5611716292.

The spelling of 53395740 in words is "fifty-three million, three hundred ninety-five thousand, seven hundred forty".