25520946411457 has 16 divisors (see below), whose sum is σ = 29184019488000. Its totient is φ = 21862180992960.

The previous prime is 25520946411421. The next prime is 25520946411461. The reversal of 25520946411457 is 75411464902552.

It is not a de Polignac number, because 25520946411457 - 2¹⁵ = 25520946378689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25520946411398 and 25520946411407.

It is not an unprimeable number, because it can be changed into a prime (25520946411157) 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, 195589044 + ... + 195719482.

It is an arithmetic number, because the mean of its divisors is an integer number (1824001218000).

Almost surely, 2^{25520946411457} is an apocalyptic number.

It is an amenable number.

25520946411457 is a deficient number, since it is larger than the sum of its proper divisors (3663073076543).

25520946411457 is a wasteful number, since it uses less digits than its factorization.

25520946411457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146736.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 25520946411457 in words is "twenty-five trillion, five hundred twenty billion, nine hundred forty-six million, four hundred eleven thousand, four hundred fifty-seven".