253801963 has 8 divisors (see below), whose sum is σ = 258118208. Its totient is φ = 249501384.

The previous prime is 253801949. The next prime is 253801973. The reversal of 253801963 is 369108352.

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

It is a cyclic number.

It is not a de Polignac number, because 253801963 - 2²¹ = 251704811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253801903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31420 + ... + 38662.

It is an arithmetic number, because the mean of its divisors is an integer number (32264776).

Almost surely, 2^253801963 is an apocalyptic number.

253801963 is a deficient number, since it is larger than the sum of its proper divisors (4316245).

253801963 is an equidigital number, since it uses as much as digits as its factorization.

253801963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7833.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 253801963 is about 15931.1632657506. The cubic root of 253801963 is about 633.1379206603.

The spelling of 253801963 in words is "two hundred fifty-three million, eight hundred one thousand, nine hundred sixty-three".