253623464 has 16 divisors (see below), whose sum is σ = 475775700. Its totient is φ = 126749952.

The previous prime is 253623463. The next prime is 253623481. The reversal of 253623464 is 464326352.

It can be written as a sum of positive squares in 2 ways, for example, as 250588900 + 3034564 = 15830^2 + 1742^2 .

It is a super-2 number, since 2×253623464² = 128649722982718592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (253623463) 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 in 3 ways as a sum of consecutive naturals, for example, 12992 + ... + 26000.

Almost surely, 2^253623464 is an apocalyptic number.

It is an amenable number.

253623464 is a deficient number, since it is larger than the sum of its proper divisors (222152236).

253623464 is a wasteful number, since it uses less digits than its factorization.

253623464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15452 (or 15448 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

The square root of 253623464 is about 15925.5600843424. The cubic root of 253623464 is about 632.9894571508.

The spelling of 253623464 in words is "two hundred fifty-three million, six hundred twenty-three thousand, four hundred sixty-four".