25120223987 has 2 divisors, whose sum is σ = 25120223988. Its totient is φ = 25120223986.

The previous prime is 25120223851. The next prime is 25120224037. The reversal of 25120223987 is 78932202152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25120223987 - 2¹⁶ = 25120158451 is a prime.

It is not a weakly prime, because it can be changed into another prime (25120229987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12560111993 + 12560111994.

It is an arithmetic number, because the mean of its divisors is an integer number (12560111994).

Almost surely, 2^25120223987 is an apocalyptic number.

25120223987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25120223987 is an equidigital number, since it uses as much as digits as its factorization.

25120223987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 25120223987 in words is "twenty-five billion, one hundred twenty million, two hundred twenty-three thousand, nine hundred eighty-seven".