253005830 has 32 divisors (see below), whose sum is σ = 567786240. Its totient is φ = 78858720.

The previous prime is 253005821. The next prime is 253005833. The reversal of 253005830 is 38500352.

It is a self number, because there is not a number n which added to its sum of digits gives 253005830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253005833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163520 + ... + 165059.

It is an arithmetic number, because the mean of its divisors is an integer number (17743320).

Almost surely, 2^253005830 is an apocalyptic number.

253005830 is an abundant number, since it is smaller than the sum of its proper divisors (314780410).

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

253005830 is a wasteful number, since it uses less digits than its factorization.

253005830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328604.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 253005830 is about 15906.1569840109. The cubic root of 253005830 is about 632.4752124100.

The spelling of 253005830 in words is "two hundred fifty-three million, five thousand, eight hundred thirty".