25520141403 has 24 divisors (see below), whose sum is σ = 38883686400. Its totient is φ = 16084283184.

The previous prime is 25520141399. The next prime is 25520141407. The reversal of 25520141403 is 30414102552.

25520141403 is a `hidden beast` number, since 2 + 55 + 201 + 4 + 1 + 403 = 666.

It is an interprime number because it is at equal distance from previous prime (25520141399) and next prime (25520141407).

It is not a de Polignac number, because 25520141403 - 2² = 25520141399 is a prime.

It is a super-2 number, since 2×25520141403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25520141407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73875 + ... + 237692.

It is an arithmetic number, because the mean of its divisors is an integer number (1620153600).

Almost surely, 2^25520141403 is an apocalyptic number.

25520141403 is a deficient number, since it is larger than the sum of its proper divisors (13363544997).

25520141403 is a wasteful number, since it uses less digits than its factorization.

25520141403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312071 (or 312068 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 25520141403 its reverse (30414102552), we get a palindrome (55934243955).

The spelling of 25520141403 in words is "twenty-five billion, five hundred twenty million, one hundred forty-one thousand, four hundred three".