43505230226557 has 4 divisors (see below), whose sum is σ = 47460251156256. Its totient is φ = 39550209296860.

The previous prime is 43505230226519. The next prime is 43505230226561. The reversal of 43505230226557 is 75562203250534.

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 a de Polignac number, because none of the positive numbers 2^k-43505230226557 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 43505230226557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43505230226257) 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, 1977510464833 + ... + 1977510464854.

It is an arithmetic number, because the mean of its divisors is an integer number (11865062789064).

Almost surely, 2^{43505230226557} is an apocalyptic number.

It is an amenable number.

43505230226557 is a deficient number, since it is larger than the sum of its proper divisors (3955020929699).

43505230226557 is a wasteful number, since it uses less digits than its factorization.

43505230226557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955020929698.

The product of its (nonzero) digits is 7560000, while the sum is 49.

The spelling of 43505230226557 in words is "forty-three trillion, five hundred five billion, two hundred thirty million, two hundred twenty-six thousand, five hundred fifty-seven".