1253355573 has 8 divisors (see below), whose sum is σ = 1671478336. Its totient is φ = 835401600.

The previous prime is 1253355559. The next prime is 1253355589. The reversal of 1253355573 is 3755533521.

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

It is not a de Polignac number, because 1253355573 - 2¹⁷ = 1253224501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253355503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23713 + ... + 55398.

It is an arithmetic number, because the mean of its divisors is an integer number (208934792).

Almost surely, 2^1253355573 is an apocalyptic number.

It is an amenable number.

1253355573 is a deficient number, since it is larger than the sum of its proper divisors (418122763).

1253355573 is an equidigital number, since it uses as much as digits as its factorization.

1253355573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84395.

The product of its digits is 236250, while the sum is 39.

The square root of 1253355573 is about 35402.7622227419. The cubic root of 1253355573 is about 1078.1803988202.

The spelling of 1253355573 in words is "one billion, two hundred fifty-three million, three hundred fifty-five thousand, five hundred seventy-three".