253998964 has 6 divisors (see below), whose sum is σ = 444498194. Its totient is φ = 126999480.

The previous prime is 253998961. The next prime is 253998967. The reversal of 253998964 is 469899352.

It is a happy number.

253998964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (253998961) and next prime (253998967).

It can be written as a sum of positive squares in only one way, i.e., 208571364 + 45427600 = 14442^2 + 6740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253998961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31749867 + ... + 31749874.

Almost surely, 2^253998964 is an apocalyptic number.

It is an amenable number.

253998964 is a deficient number, since it is larger than the sum of its proper divisors (190499230).

253998964 is a wasteful number, since it uses less digits than its factorization.

253998964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63499745 (or 63499743 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The square root of 253998964 is about 15937.3449482654. The cubic root of 253998964 is about 633.3016921096.

The spelling of 253998964 in words is "two hundred fifty-three million, nine hundred ninety-eight thousand, nine hundred sixty-four".