2405555401 has 4 divisors (see below), whose sum is σ = 2532163600. Its totient is φ = 2278947204.

The previous prime is 2405555359. The next prime is 2405555417. The reversal of 2405555401 is 1045555042.

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 2405555401 - 2¹⁵ = 2405522633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405555431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63304071 + ... + 63304108.

It is an arithmetic number, because the mean of its divisors is an integer number (633040900).

Almost surely, 2^2405555401 is an apocalyptic number.

It is an amenable number.

2405555401 is a deficient number, since it is larger than the sum of its proper divisors (126608199).

2405555401 is a wasteful number, since it uses less digits than its factorization.

2405555401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126608198.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2405555401 is about 49046.4616562704. The cubic root of 2405555401 is about 1339.8981509060.

The spelling of 2405555401 in words is "two billion, four hundred five million, five hundred fifty-five thousand, four hundred one".