405025542401 has 4 divisors (see below), whose sum is σ = 408810827952. Its totient is φ = 401240256852.

The previous prime is 405025542343. The next prime is 405025542413. The reversal of 405025542401 is 104245520504.

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 405025542401 - 2²² = 405021348097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405025542491) 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, 1892642615 + ... + 1892642828.

It is an arithmetic number, because the mean of its divisors is an integer number (102202706988).

Almost surely, 2^405025542401 is an apocalyptic number.

It is an amenable number.

405025542401 is a deficient number, since it is larger than the sum of its proper divisors (3785285551).

405025542401 is a wasteful number, since it uses less digits than its factorization.

405025542401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785285550.

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 405025542401 in words is "four hundred five billion, twenty-five million, five hundred forty-two thousand, four hundred one".