1557000650 has 24 divisors (see below), whose sum is σ = 2909766144. Its totient is φ = 619844400.

The previous prime is 1557000649. The next prime is 1557000667. The reversal of 1557000650 is 560007551.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63242 + ... + 84341.

It is an arithmetic number, because the mean of its divisors is an integer number (121240256).

Almost surely, 2^1557000650 is an apocalyptic number.

1557000650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1557000650 is a deficient number, since it is larger than the sum of its proper divisors (1352765494).

1557000650 is a wasteful number, since it uses less digits than its factorization.

1557000650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147806 (or 147801 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 1557000650 is about 39458.8475503277. The cubic root of 1557000650 is about 1159.0342363026.

The spelling of 1557000650 in words is "one billion, five hundred fifty-seven million, six hundred fifty", and thus it is an aban number.