1485925591 has 2 divisors, whose sum is σ = 1485925592. Its totient is φ = 1485925590.

The previous prime is 1485925547. The next prime is 1485925601. The reversal of 1485925591 is 1955295841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1485925591 - 2⁹ = 1485925079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1485925391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742962795 + 742962796.

It is an arithmetic number, because the mean of its divisors is an integer number (742962796).

Almost surely, 2^1485925591 is an apocalyptic number.

1485925591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485925591 is an equidigital number, since it uses as much as digits as its factorization.

1485925591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 49.

The square root of 1485925591 is about 38547.7053921501. The cubic root of 1485925591 is about 1141.1227245919.

The spelling of 1485925591 in words is "one billion, four hundred eighty-five million, nine hundred twenty-five thousand, five hundred ninety-one".