40555376501 has 4 divisors (see below), whose sum is σ = 40602699852. Its totient is φ = 40508053152.

The previous prime is 40555376461. The next prime is 40555376527. The reversal of 40555376501 is 10567355504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22815800401 + 17739576100 = 151049^2 + 133190^2 .

It is a cyclic number.

It is not a de Polignac number, because 40555376501 - 2²² = 40551182197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40555376531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23660390 + ... + 23662103.

It is an arithmetic number, because the mean of its divisors is an integer number (10150674963).

Almost surely, 2^40555376501 is an apocalyptic number.

It is an amenable number.

40555376501 is a deficient number, since it is larger than the sum of its proper divisors (47323351).

40555376501 is an equidigital number, since it uses as much as digits as its factorization.

40555376501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47323350.

The product of its (nonzero) digits is 315000, while the sum is 41.

The spelling of 40555376501 in words is "forty billion, five hundred fifty-five million, three hundred seventy-six thousand, five hundred one".