40025043513 has 48 divisors (see below), whose sum is σ = 73381184640. Its totient is φ = 21112094016.

The previous prime is 40025043511. The next prime is 40025043517. The reversal of 40025043513 is 31534052004.

40025043513 is a `hidden beast` number, since 400 + 250 + 4 + 3 + 5 + 1 + 3 = 666.

40025043513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40025043513 - 2¹ = 40025043511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40025043511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 594606 + ... + 658487.

It is an arithmetic number, because the mean of its divisors is an integer number (1528774680).

Almost surely, 2^40025043513 is an apocalyptic number.

It is an amenable number.

40025043513 is a deficient number, since it is larger than the sum of its proper divisors (33356141127).

40025043513 is a wasteful number, since it uses less digits than its factorization.

40025043513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253135 (or 1253116 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40025043513 its reverse (31534052004), we get a palindrome (71559095517).

The spelling of 40025043513 in words is "forty billion, twenty-five million, forty-three thousand, five hundred thirteen".