290630253 has 4 divisors (see below), whose sum is σ = 387507008. Its totient is φ = 193753500.

The previous prime is 290630243. The next prime is 290630261. The reversal of 290630253 is 352036092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 290630253 - 2⁶ = 290630189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290630253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290630243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48438373 + ... + 48438378.

It is an arithmetic number, because the mean of its divisors is an integer number (96876752).

Almost surely, 2^290630253 is an apocalyptic number.

It is an amenable number.

290630253 is a deficient number, since it is larger than the sum of its proper divisors (96876755).

290630253 is an equidigital number, since it uses as much as digits as its factorization.

290630253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96876754.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 290630253 is about 17047.8811879952. The cubic root of 290630253 is about 662.3897549080.

The spelling of 290630253 in words is "two hundred ninety million, six hundred thirty thousand, two hundred fifty-three".