25111351451 has 2 divisors, whose sum is σ = 25111351452. Its totient is φ = 25111351450.

The previous prime is 25111351427. The next prime is 25111351453. The reversal of 25111351451 is 15415311152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25111351451 - 2¹⁰ = 25111350427 is a prime.

It is a Sophie Germain prime.

Together with 25111351453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25111351453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12555675725 + 12555675726.

It is an arithmetic number, because the mean of its divisors is an integer number (12555675726).

Almost surely, 2^25111351451 is an apocalyptic number.

25111351451 is a deficient number, since it is larger than the sum of its proper divisors (1).

25111351451 is an equidigital number, since it uses as much as digits as its factorization.

25111351451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 29.

The spelling of 25111351451 in words is "twenty-five billion, one hundred eleven million, three hundred fifty-one thousand, four hundred fifty-one".