53495969040 has 120 divisors (see below), whose sum is σ = 180650317848. Its totient is φ = 14186741760.

The previous prime is 53495969017. The next prime is 53495969041. The reversal of 53495969040 is 4096959435.

53495969040 is a `hidden beast` number, since 5 + 3 + 4 + 9 + 596 + 9 + 0 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2226329856 + 51269639184 = 47184^2 + 226428^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53495969041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74929 + ... + 335568.

Almost surely, 2^53495969040 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 53495969040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90325158924).

53495969040 is an abundant number, since it is smaller than the sum of its proper divisors (127154348808).

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

53495969040 is a wasteful number, since it uses less digits than its factorization.

53495969040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410697 (or 410688 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 53495969040 in words is "fifty-three billion, four hundred ninety-five million, nine hundred sixty-nine thousand, forty".