40252115551 has 8 divisors (see below), whose sum is σ = 42742717200. Its totient is φ = 37775161728.

The previous prime is 40252115549. The next prime is 40252115591. The reversal of 40252115551 is 15551125204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40252115551 - 2¹ = 40252115549 is a prime.

It is a Duffinian number.

40252115551 is a modest number, since divided by 115551 gives 40252 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40252115591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405876 + ... + 3417673.

It is an arithmetic number, because the mean of its divisors is an integer number (5342839650).

Almost surely, 2^40252115551 is an apocalyptic number.

40252115551 is a deficient number, since it is larger than the sum of its proper divisors (2490601649).

40252115551 is a wasteful number, since it uses less digits than its factorization.

40252115551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823913.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 40252115551 in words is "forty billion, two hundred fifty-two million, one hundred fifteen thousand, five hundred fifty-one".