253475722 has 4 divisors (see below), whose sum is σ = 380213586. Its totient is φ = 126737860.

The previous prime is 253475707. The next prime is 253475723. The reversal of 253475722 is 227574352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 206813161 + 46662561 = 14381^2 + 6831^2 .

It is not an unprimeable number, because it can be changed into a prime (253475723) 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 as a sum of consecutive naturals, namely, 63368929 + ... + 63368932.

Almost surely, 2^253475722 is an apocalyptic number.

253475722 is a deficient number, since it is larger than the sum of its proper divisors (126737864).

253475722 is a wasteful number, since it uses less digits than its factorization.

253475722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126737863.

The product of its digits is 117600, while the sum is 37.

The square root of 253475722 is about 15920.9208904510. The cubic root of 253475722 is about 632.8665225560.

The spelling of 253475722 in words is "two hundred fifty-three million, four hundred seventy-five thousand, seven hundred twenty-two".