1557485467 has 2 divisors, whose sum is σ = 1557485468. Its totient is φ = 1557485466.

The previous prime is 1557485383. The next prime is 1557485533. The reversal of 1557485467 is 7645847551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1557485467 - 2²⁷ = 1423267739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1557485767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778742733 + 778742734.

It is an arithmetic number, because the mean of its divisors is an integer number (778742734).

Almost surely, 2^1557485467 is an apocalyptic number.

1557485467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1557485467 is an equidigital number, since it uses as much as digits as its factorization.

1557485467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704000, while the sum is 52.

The square root of 1557485467 is about 39464.9903965527. The cubic root of 1557485467 is about 1159.1545233833.

The spelling of 1557485467 in words is "one billion, five hundred fifty-seven million, four hundred eighty-five thousand, four hundred sixty-seven".