253602331 has 2 divisors, whose sum is σ = 253602332. Its totient is φ = 253602330.

The previous prime is 253602313. The next prime is 253602353. The reversal of 253602331 is 133206352.

It is a happy number.

Together with previous prime (253602313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253602331 - 2¹⁷ = 253471259 is a prime.

It is a super-2 number, since 2×253602331² = 128628284577267122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253602296 and 253602305.

It is not a weakly prime, because it can be changed into another prime (253102331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126801165 + 126801166.

It is an arithmetic number, because the mean of its divisors is an integer number (126801166).

Almost surely, 2^253602331 is an apocalyptic number.

253602331 is a deficient number, since it is larger than the sum of its proper divisors (1).

253602331 is an equidigital number, since it uses as much as digits as its factorization.

253602331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 253602331 is about 15924.8965773722. The cubic root of 253602331 is about 632.9718755260.

Adding to 253602331 its reverse (133206352), we get a palindrome (386808683).

The spelling of 253602331 in words is "two hundred fifty-three million, six hundred two thousand, three hundred thirty-one".