15484512257 has 2 divisors, whose sum is σ = 15484512258. Its totient is φ = 15484512256.

The previous prime is 15484512227. The next prime is 15484512293. The reversal of 15484512257 is 75221548451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13980934081 + 1503578176 = 118241^2 + 38776^2 .

It is a cyclic number.

It is not a de Polignac number, because 15484512257 - 2¹² = 15484508161 is a prime.

It is not a weakly prime, because it can be changed into another prime (15484512227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7742256128 + 7742256129.

It is an arithmetic number, because the mean of its divisors is an integer number (7742256129).

Almost surely, 2^15484512257 is an apocalyptic number.

It is an amenable number.

15484512257 is a deficient number, since it is larger than the sum of its proper divisors (1).

15484512257 is an equidigital number, since it uses as much as digits as its factorization.

15484512257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448000, while the sum is 44.

The spelling of 15484512257 in words is "fifteen billion, four hundred eighty-four million, five hundred twelve thousand, two hundred fifty-seven".