1253730553 has 8 divisors (see below), whose sum is σ = 1274561280. Its totient is φ = 1233024000.

The previous prime is 1253730547. The next prime is 1253730559. The reversal of 1253730553 is 3550373521.

It is an interprime number because it is at equal distance from previous prime (1253730547) and next prime (1253730559).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253730553 - 2⁹ = 1253730041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253730559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10573 + ... + 51178.

It is an arithmetic number, because the mean of its divisors is an integer number (159320160).

Almost surely, 2^1253730553 is an apocalyptic number.

It is an amenable number.

1253730553 is a deficient number, since it is larger than the sum of its proper divisors (20830727).

1253730553 is an equidigital number, since it uses as much as digits as its factorization.

1253730553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62087.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 1253730553 is about 35408.0577411414. The cubic root of 1253730553 is about 1078.2879117458.

The spelling of 1253730553 in words is "one billion, two hundred fifty-three million, seven hundred thirty thousand, five hundred fifty-three".