40002552131515 has 16 divisors (see below), whose sum is σ = 48492774263808. Its totient is φ = 31676731140096.

The previous prime is 40002552131513. The next prime is 40002552131519. The reversal of 40002552131515 is 51513125520004.

It is a cyclic number.

It is not a de Polignac number, because 40002552131515 - 2¹ = 40002552131513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40002552131513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72468862 + ... + 73018771.

It is an arithmetic number, because the mean of its divisors is an integer number (3030798391488).

Almost surely, 2^{40002552131515} is an apocalyptic number.

40002552131515 is a deficient number, since it is larger than the sum of its proper divisors (8490222132293).

40002552131515 is a wasteful number, since it uses less digits than its factorization.

40002552131515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145488198.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 40002552131515 its reverse (51513125520004), we get a palindrome (91515677651519).

The spelling of 40002552131515 in words is "forty trillion, two billion, five hundred fifty-two million, one hundred thirty-one thousand, five hundred fifteen".