1530256250 has 24 divisors (see below), whose sum is σ = 2869058556. Its totient is φ = 612100000.

The previous prime is 1530256223. The next prime is 1530256261. The reversal of 1530256250 is 526520351.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 371602729 + 1158653521 = 19277^2 + 34039^2 .

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, 116171 + ... + 128670.

Almost surely, 2^1530256250 is an apocalyptic number.

1530256250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1530256250 is a deficient number, since it is larger than the sum of its proper divisors (1338802306).

1530256250 is an frugal number, since it uses more digits than its factorization.

1530256250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244868 (or 244848 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1530256250 is about 39118.4898737157. The cubic root of 1530256250 is about 1152.3596791344.

The spelling of 1530256250 in words is "one billion, five hundred thirty million, two hundred fifty-six thousand, two hundred fifty".