25434000521541 has 12 divisors (see below), whose sum is σ = 36738115303968. Its totient is φ = 16955947478184.

The previous prime is 25434000521521. The next prime is 25434000521639. The reversal of 25434000521541 is 14512500043452.

25434000521541 is a `hidden beast` number, since 2 + 5 + 43 + 40 + 0 + 0 + 521 + 54 + 1 = 666.

It is not a de Polignac number, because 25434000521541 - 2⁶ = 25434000521477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25434000521496 and 25434000521505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434000521521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239225 + ... + 7239038.

It is an arithmetic number, because the mean of its divisors is an integer number (3061509608664).

Almost surely, 2^{25434000521541} is an apocalyptic number.

It is an amenable number.

25434000521541 is a deficient number, since it is larger than the sum of its proper divisors (11304114782427).

25434000521541 is a wasteful number, since it uses less digits than its factorization.

25434000521541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811592 (or 8811589 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 25434000521541 its reverse (14512500043452), we get a palindrome (39946500564993).

The spelling of 25434000521541 in words is "twenty-five trillion, four hundred thirty-four billion, five hundred twenty-one thousand, five hundred forty-one".