1525041487 has 2 divisors, whose sum is σ = 1525041488. Its totient is φ = 1525041486.

The previous prime is 1525041461. The next prime is 1525041509. The reversal of 1525041487 is 7841405251.

It is a strong prime.

It is an emirp because it is prime and its reverse (7841405251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525041487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525041407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762520743 + 762520744.

It is an arithmetic number, because the mean of its divisors is an integer number (762520744).

Almost surely, 2^1525041487 is an apocalyptic number.

1525041487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525041487 is an equidigital number, since it uses as much as digits as its factorization.

1525041487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 1525041487 is about 39051.7795625244. The cubic root of 1525041487 is about 1151.0491967328.

The spelling of 1525041487 in words is "one billion, five hundred twenty-five million, forty-one thousand, four hundred eighty-seven".