1253602530 has 24 divisors (see below), whose sum is σ = 3259366812. Its totient is φ = 334293984.

The previous prime is 1253602523. The next prime is 1253602541. The reversal of 1253602530 is 352063521.

1253602530 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 602 + 53 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1202494329 + 51108201 = 34677^2 + 7149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1253602494 and 1253602503.

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, 6964369 + ... + 6964548.

Almost surely, 2^1253602530 is an apocalyptic number.

1253602530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253602530 is an abundant number, since it is smaller than the sum of its proper divisors (2005764282).

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

1253602530 is a wasteful number, since it uses less digits than its factorization.

1253602530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928930 (or 13928927 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1253602530 is about 35406.2498720212. The cubic root of 1253602530 is about 1078.2512078591.

The spelling of 1253602530 in words is "one billion, two hundred fifty-three million, six hundred two thousand, five hundred thirty".