40553309453 has 4 divisors (see below), whose sum is σ = 40947031008. Its totient is φ = 40159587900.

The previous prime is 40553309351. The next prime is 40553309473. The reversal of 40553309453 is 35490335504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40553309453 - 2²⁰ = 40552260877 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 40553309453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40553309473) 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, 196860623 + ... + 196860828.

It is an arithmetic number, because the mean of its divisors is an integer number (10236757752).

Almost surely, 2^40553309453 is an apocalyptic number.

It is an amenable number.

40553309453 is a deficient number, since it is larger than the sum of its proper divisors (393721555).

40553309453 is a wasteful number, since it uses less digits than its factorization.

40553309453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393721554.

The product of its (nonzero) digits is 486000, while the sum is 41.

The spelling of 40553309453 in words is "forty billion, five hundred fifty-three million, three hundred nine thousand, four hundred fifty-three".