253503473 has 8 divisors (see below), whose sum is σ = 268558920. Its totient is φ = 238464000.

The previous prime is 253503469. The next prime is 253503499. The reversal of 253503473 is 374305352.

It can be written as a sum of positive squares in 4 ways, for example, as 38353249 + 215150224 = 6193^2 + 14668^2 .

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 253503473 - 2² = 253503469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253503443) 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, 48533 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (33569865).

Almost surely, 2^253503473 is an apocalyptic number.

It is an amenable number.

253503473 is a deficient number, since it is larger than the sum of its proper divisors (15055447).

253503473 is a wasteful number, since it uses less digits than its factorization.

253503473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987.

The product of its (nonzero) digits is 37800, while the sum is 32.

The square root of 253503473 is about 15921.7923928181. The cubic root of 253503473 is about 632.8896175200.

The spelling of 253503473 in words is "two hundred fifty-three million, five hundred three thousand, four hundred seventy-three".