40531255402 has 16 divisors (see below), whose sum is σ = 66967797312. Its totient is φ = 18244429920.

The previous prime is 40531255397. The next prime is 40531255433. The reversal of 40531255402 is 20455213504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8941083 + ... + 8945614.

It is an arithmetic number, because the mean of its divisors is an integer number (4185487332).

Almost surely, 2^40531255402 is an apocalyptic number.

40531255402 is a deficient number, since it is larger than the sum of its proper divisors (26436541910).

40531255402 is a wasteful number, since it uses less digits than its factorization.

40531255402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17886813.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 40531255402 its reverse (20455213504), we get a palindrome (60986468906).

The spelling of 40531255402 in words is "forty billion, five hundred thirty-one million, two hundred fifty-five thousand, four hundred two".