253705000 has 40 divisors (see below), whose sum is σ = 594442530. Its totient is φ = 101480000.

The previous prime is 253704977. The next prime is 253705009. The reversal of 253705000 is 507352.

It can be written as a sum of positive squares in 5 ways, for example, as 1085764 + 252619236 = 1042^2 + 15894^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (253705009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20371 + ... + 30370.

Almost surely, 2^253705000 is an apocalyptic number.

253705000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253705000 is an abundant number, since it is smaller than the sum of its proper divisors (340737530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253705000 is an equidigital number, since it uses as much as digits as its factorization.

253705000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50767 (or 50748 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 253705000 is about 15928.1197886003. The cubic root of 253705000 is about 633.0572819724.

The spelling of 253705000 in words is "two hundred fifty-three million, seven hundred five thousand".