256552416453 has 8 divisors (see below), whose sum is σ = 342079777600. Its totient is φ = 171029999808.

The previous prime is 256552416433. The next prime is 256552416503. The reversal of 256552416453 is 354614255652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256552416453 - 2¹² = 256552412357 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 (256552416433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113313 + ... + 1323846.

It is an arithmetic number, because the mean of its divisors is an integer number (42759972200).

Almost surely, 2^256552416453 is an apocalyptic number.

It is an amenable number.

256552416453 is a deficient number, since it is larger than the sum of its proper divisors (85527361147).

256552416453 is a wasteful number, since it uses less digits than its factorization.

256552416453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472251.

The product of its digits is 4320000, while the sum is 48.

The spelling of 256552416453 in words is "two hundred fifty-six billion, five hundred fifty-two million, four hundred sixteen thousand, four hundred fifty-three".