53069040 has 160 divisors (see below), whose sum is σ = 185702400. Its totient is φ = 13927680.

The previous prime is 53069011. The next prime is 53069057. The reversal of 53069040 is 4096035.

It is a happy number.

53069040 is a `hidden beast` number, since 530 + 6 + 90 + 40 = 666.

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 = 53068995 and 53069013.

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, 170485 + ... + 170795.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^53069040 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 53069040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92851200).

53069040 is an abundant number, since it is smaller than the sum of its proper divisors (132633360).

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

53069040 is a wasteful number, since it uses less digits than its factorization.

53069040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 53069040 is about 7284.8500327735. The cubic root of 53069040 is about 375.7916077765.

The spelling of 53069040 in words is "fifty-three million, sixty-nine thousand, forty".