40025311252 has 12 divisors (see below), whose sum is σ = 73089698976. Its totient is φ = 19142540120.

The previous prime is 40025311247. The next prime is 40025311279. The reversal of 40025311252 is 25211352004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217528774 + ... + 217528957.

It is an arithmetic number, because the mean of its divisors is an integer number (6090808248).

Almost surely, 2^40025311252 is an apocalyptic number.

It is an amenable number.

40025311252 is a deficient number, since it is larger than the sum of its proper divisors (33064387724).

40025311252 is a wasteful number, since it uses less digits than its factorization.

40025311252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435057758 (or 435057756 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 40025311252 its reverse (25211352004), we get a palindrome (65236663256).

The spelling of 40025311252 in words is "forty billion, twenty-five million, three hundred eleven thousand, two hundred fifty-two".