25135016445 has 160 divisors (see below), whose sum is σ = 58113918720. Its totient is φ = 10085160960.

The previous prime is 25135016407. The next prime is 25135016461. The reversal of 25135016445 is 54461053152.

25135016445 is a `hidden beast` number, since 2 + 5 + 1 + 3 + 5 + 0 + 1 + 644 + 5 = 666.

It is not a de Polignac number, because 25135016445 - 2⁷ = 25135016317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 890469 + ... + 918261.

It is an arithmetic number, because the mean of its divisors is an integer number (363211992).

Almost surely, 2^25135016445 is an apocalyptic number.

It is an amenable number.

25135016445 is an abundant number, since it is smaller than the sum of its proper divisors (32978902275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25135016445 is a wasteful number, since it uses less digits than its factorization.

25135016445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27857 (or 27848 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 25135016445 its reverse (54461053152), we get a palindrome (79596069597).

The spelling of 25135016445 in words is "twenty-five billion, one hundred thirty-five million, sixteen thousand, four hundred forty-five".