40520575754 has 4 divisors (see below), whose sum is σ = 60780863634. Its totient is φ = 20260287876.

The previous prime is 40520575751. The next prime is 40520575763. The reversal of 40520575754 is 45757502504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37871106025 + 2649469729 = 194605^2 + 51473^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40520575751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10130143937 + ... + 10130143940.

Almost surely, 2^40520575754 is an apocalyptic number.

40520575754 is a deficient number, since it is larger than the sum of its proper divisors (20260287880).

40520575754 is a wasteful number, since it uses less digits than its factorization.

40520575754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260287879.

The product of its (nonzero) digits is 980000, while the sum is 44.

The spelling of 40520575754 in words is "forty billion, five hundred twenty million, five hundred seventy-five thousand, seven hundred fifty-four".