25577051 has 2 divisors, whose sum is σ = 25577052. Its totient is φ = 25577050.

The previous prime is 25577029. The next prime is 25577053. The reversal of 25577051 is 15077552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25577051 - 2²² = 21382747 is a prime.

Together with 25577053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25576999 and 25577017.

It is not a weakly prime, because it can be changed into another prime (25577053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788525 + 12788526.

It is an arithmetic number, because the mean of its divisors is an integer number (12788526).

Almost surely, 2^25577051 is an apocalyptic number.

25577051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25577051 is an equidigital number, since it uses as much as digits as its factorization.

25577051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 25577051 is about 5057.3759006030. The cubic root of 25577051 is about 294.6344260217.

The spelling of 25577051 in words is "twenty-five million, five hundred seventy-seven thousand, fifty-one".