52142540040 has 48 divisors (see below), whose sum is σ = 169463256300. Its totient is φ = 13904677248.

The previous prime is 52142539979. The next prime is 52142540081. The reversal of 52142540040 is 4004524125.

52142540040 is a `hidden beast` number, since 5 + 214 + 2 + 5 + 400 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50833113444 + 1309426596 = 225462^2 + 36186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52142539986 and 52142540013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72419835 + ... + 72420554.

Almost surely, 2^52142540040 is an apocalyptic number.

It is an amenable number.

52142540040 is an abundant number, since it is smaller than the sum of its proper divisors (117320716260).

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

52142540040 is a wasteful number, since it uses less digits than its factorization.

52142540040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144840406 (or 144840399 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The spelling of 52142540040 in words is "fifty-two billion, one hundred forty-two million, five hundred forty thousand, forty".