25575337451 has 2 divisors, whose sum is σ = 25575337452. Its totient is φ = 25575337450.

The previous prime is 25575337409. The next prime is 25575337477. The reversal of 25575337451 is 15473357552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25575337451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25575337396 and 25575337405.

It is not a weakly prime, because it can be changed into another prime (25575337751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787668725 + 12787668726.

It is an arithmetic number, because the mean of its divisors is an integer number (12787668726).

Almost surely, 2^25575337451 is an apocalyptic number.

25575337451 is a deficient number, since it is larger than the sum of its proper divisors (1).

25575337451 is an equidigital number, since it uses as much as digits as its factorization.

25575337451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2205000, while the sum is 47.

The spelling of 25575337451 in words is "twenty-five billion, five hundred seventy-five million, three hundred thirty-seven thousand, four hundred fifty-one".