1557487048 has 32 divisors (see below), whose sum is σ = 3173801400. Its totient is φ = 712240128.

The previous prime is 1557487037. The next prime is 1557487091. The reversal of 1557487048 is 8407847551.

It can be written as a sum of positive squares in 4 ways, for example, as 1473177924 + 84309124 = 38382^2 + 9182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1557486992 and 1557487010.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 57361 + ... + 80032.

Almost surely, 2^1557487048 is an apocalyptic number.

It is an amenable number.

1557487048 is an abundant number, since it is smaller than the sum of its proper divisors (1616314352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1557487048 is a wasteful number, since it uses less digits than its factorization.

1557487048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137521 (or 137517 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 49.

The square root of 1557487048 is about 39465.0104269592. The cubic root of 1557487048 is about 1159.1549156015.

The spelling of 1557487048 in words is "one billion, five hundred fifty-seven million, four hundred eighty-seven thousand, forty-eight".