253880290 has 8 divisors (see below), whose sum is σ = 456984540. Its totient is φ = 101552112.

The previous prime is 253880287. The next prime is 253880357. The reversal of 253880290 is 92088352.

253880290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 226412209 + 27468081 = 15047^2 + 5241^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12694005 + ... + 12694024.

Almost surely, 2^253880290 is an apocalyptic number.

253880290 is a deficient number, since it is larger than the sum of its proper divisors (203104250).

253880290 is a wasteful number, since it uses less digits than its factorization.

253880290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25388036.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 253880290 is about 15933.6213711761. The cubic root of 253880290 is about 633.2030458372.

It can be divided in two parts, 2538 and 80290, that added together give a palindrome (82828).

The spelling of 253880290 in words is "two hundred fifty-three million, eight hundred eighty thousand, two hundred ninety".