40503012551 has 4 divisors (see below), whose sum is σ = 40774845000. Its totient is φ = 40231180104.

The previous prime is 40503012523. The next prime is 40503012569. The reversal of 40503012551 is 15521030504.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40503012551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40503012551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40503017551) 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, 135916001 + ... + 135916298.

It is an arithmetic number, because the mean of its divisors is an integer number (10193711250).

Almost surely, 2^40503012551 is an apocalyptic number.

40503012551 is a deficient number, since it is larger than the sum of its proper divisors (271832449).

40503012551 is a wasteful number, since it uses less digits than its factorization.

40503012551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271832448.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 40503012551 in words is "forty billion, five hundred three million, twelve thousand, five hundred fifty-one".