1295253650 has 12 divisors (see below), whose sum is σ = 2409171882. Its totient is φ = 518101440.

The previous prime is 1295253637. The next prime is 1295253653. The reversal of 1295253650 is 563525921.

It can be written as a sum of positive squares in 3 ways, for example, as 1231939801 + 63313849 = 35099^2 + 7957^2 .

It is a super-3 number, since 3×1295253650³ (a number of 28 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1295253653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12952487 + ... + 12952586.

Almost surely, 2^1295253650 is an apocalyptic number.

1295253650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1295253650 is a deficient number, since it is larger than the sum of its proper divisors (1113918232).

1295253650 is a wasteful number, since it uses less digits than its factorization.

1295253650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25905085 (or 25905080 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 1295253650 is about 35989.6325349398. The cubic root of 1295253650 is about 1090.0630241593.

The spelling of 1295253650 in words is "one billion, two hundred ninety-five million, two hundred fifty-three thousand, six hundred fifty".