25494354432 has 120 divisors (see below), whose sum is σ = 77451248160. Its totient is φ = 8050821120.

The previous prime is 25494354341. The next prime is 25494354463. The reversal of 25494354432 is 23445349452.

25494354432 is a `hidden beast` number, since 2 + 549 + 4 + 35 + 44 + 32 = 666.

It is a super-3 number, since 3×25494354432³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58044 + ... + 233147.

It is an arithmetic number, because the mean of its divisors is an integer number (645427068).

Almost surely, 2^25494354432 is an apocalyptic number.

It is an amenable number.

25494354432 is an abundant number, since it is smaller than the sum of its proper divisors (51956893728).

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

25494354432 is a wasteful number, since it uses less digits than its factorization.

25494354432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291234 (or 291215 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 25494354432 in words is "twenty-five billion, four hundred ninety-four million, three hundred fifty-four thousand, four hundred thirty-two".