2505403343401 has 16 divisors (see below), whose sum is σ = 2873854365696. Its totient is φ = 2139587464896.

The previous prime is 2505403343383. The next prime is 2505403343411. The reversal of 2505403343401 is 1043433045052.

It is a happy number.

It is not a de Polignac number, because 2505403343401 - 2⁷ = 2505403343273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505403343411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34957335 + ... + 35028931.

It is an arithmetic number, because the mean of its divisors is an integer number (179615897856).

Almost surely, 2^{2505403343401} is an apocalyptic number.

It is an amenable number.

2505403343401 is a deficient number, since it is larger than the sum of its proper divisors (368451022295).

2505403343401 is a wasteful number, since it uses less digits than its factorization.

2505403343401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89928.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 2505403343401 its reverse (1043433045052), we get a palindrome (3548836388453).

The spelling of 2505403343401 in words is "two trillion, five hundred five billion, four hundred three million, three hundred forty-three thousand, four hundred one".