405516055 has 8 divisors (see below), whose sum is σ = 556136352. Its totient is φ = 278068128.

The previous prime is 405516049. The next prime is 405516061. The reversal of 405516055 is 550615504.

It is an interprime number because it is at equal distance from previous prime (405516049) and next prime (405516061).

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

It is a cyclic number.

It is not a de Polignac number, because 405516055 - 2²³ = 397127447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5793052 + ... + 5793121.

It is an arithmetic number, because the mean of its divisors is an integer number (69517044).

Almost surely, 2^405516055 is an apocalyptic number.

405516055 is a deficient number, since it is larger than the sum of its proper divisors (150620297).

405516055 is a wasteful number, since it uses less digits than its factorization.

405516055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11586185.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 405516055 is about 20137.4292053380. The cubic root of 405516055 is about 740.1777360995.

The spelling of 405516055 in words is "four hundred five million, five hundred sixteen thousand, fifty-five".