25520141401 has 4 divisors (see below), whose sum is σ = 25522027792. Its totient is φ = 25518255012.

The previous prime is 25520141399. The next prime is 25520141407. The reversal of 25520141401 is 10414102552.

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 25520141401 - 2¹ = 25520141399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25520141407) 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 3 ways as a sum of consecutive naturals, for example, 922755 + ... + 950008.

It is an arithmetic number, because the mean of its divisors is an integer number (6380506948).

Almost surely, 2^25520141401 is an apocalyptic number.

It is an amenable number.

25520141401 is a deficient number, since it is larger than the sum of its proper divisors (1886391).

25520141401 is a wasteful number, since it uses less digits than its factorization.

25520141401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886390.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 25520141401 its reverse (10414102552), we get a palindrome (35934243953).

The spelling of 25520141401 in words is "twenty-five billion, five hundred twenty million, one hundred forty-one thousand, four hundred one".