1257053350 has 36 divisors (see below), whose sum is σ = 2719858284. Its totient is φ = 430988880.

The previous prime is 1257053333. The next prime is 1257053383. The reversal of 1257053350 is 533507521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 254092 + ... + 258991.

It is an arithmetic number, because the mean of its divisors is an integer number (75551619).

Almost surely, 2^1257053350 is an apocalyptic number.

1257053350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1257053350 is an abundant number, since it is smaller than the sum of its proper divisors (1462804934).

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

1257053350 is a wasteful number, since it uses less digits than its factorization.

1257053350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513109 (or 513097 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 1257053350 is about 35454.9481737035. The cubic root of 1257053350 is about 1079.2396769044.

The spelling of 1257053350 in words is "one billion, two hundred fifty-seven million, fifty-three thousand, three hundred fifty".