405255314445551 has 4 divisors (see below), whose sum is σ = 405389371780512. Its totient is φ = 405121257110592.

The previous prime is 405255314445521. The next prime is 405255314445581. The reversal of 405255314445551 is 155544413552504.

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

It is an interprime number because it is at equal distance from previous prime (405255314445521) and next prime (405255314445581).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405255314445551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405255314445493 and 405255314445502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405255314445511) 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, 67028662946 + ... + 67028668991.

It is an arithmetic number, because the mean of its divisors is an integer number (101347342945128).

Almost surely, 2^{405255314445551} is an apocalyptic number.

405255314445551 is a deficient number, since it is larger than the sum of its proper divisors (134057334961).

405255314445551 is a wasteful number, since it uses less digits than its factorization.

405255314445551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134057334960.

The product of its (nonzero) digits is 24000000, while the sum is 53.

The spelling of 405255314445551 in words is "four hundred five trillion, two hundred fifty-five billion, three hundred fourteen million, four hundred forty-five thousand, five hundred fifty-one".