1525428245251 has 2 divisors, whose sum is σ = 1525428245252. Its totient is φ = 1525428245250.

The previous prime is 1525428245249. The next prime is 1525428245303.

1525428245251 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1525428245251 - 2¹ = 1525428245249 is a prime.

It is a super-3 number, since 3×1525428245251³ (a number of 38 digits) contains 333 as substring.

Together with 1525428245249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1525428245951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762714122625 + 762714122626.

It is an arithmetic number, because the mean of its divisors is an integer number (762714122626).

Almost surely, 2^{1525428245251} is an apocalyptic number.

1525428245251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525428245251 is an equidigital number, since it uses as much as digits as its factorization.

1525428245251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280000, while the sum is 46.

The spelling of 1525428245251 in words is "one trillion, five hundred twenty-five billion, four hundred twenty-eight million, two hundred forty-five thousand, two hundred fifty-one".