25025421471 has 16 divisors (see below), whose sum is σ = 34243522560. Its totient is φ = 16250778720.

The previous prime is 25025421461. The next prime is 25025421503. The reversal of 25025421471 is 17412452052.

It is not a de Polignac number, because 25025421471 - 2²⁶ = 24958312607 is a prime.

It is a super-3 number, since 3×25025421471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025421461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644991 + ... + 682688.

It is an arithmetic number, because the mean of its divisors is an integer number (2140220160).

Almost surely, 2^25025421471 is an apocalyptic number.

25025421471 is a deficient number, since it is larger than the sum of its proper divisors (9218101089).

25025421471 is a wasteful number, since it uses less digits than its factorization.

25025421471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327846.

The product of its (nonzero) digits is 22400, while the sum is 33.

The spelling of 25025421471 in words is "twenty-five billion, twenty-five million, four hundred twenty-one thousand, four hundred seventy-one".