253415244403 has 8 divisors (see below), whose sum is σ = 255457474272. Its totient is φ = 251380649856.

The previous prime is 253415244389. The next prime is 253415244419. The reversal of 253415244403 is 304442514352.

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 253415244403 - 2⁵ = 253415244371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253415244443) 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, 1842175 + ... + 1974952.

It is an arithmetic number, because the mean of its divisors is an integer number (31932184284).

Almost surely, 2^253415244403 is an apocalyptic number.

253415244403 is a deficient number, since it is larger than the sum of its proper divisors (2042229869).

253415244403 is a wasteful number, since it uses less digits than its factorization.

253415244403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817661.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 253415244403 its reverse (304442514352), we get a palindrome (557857758755).

The spelling of 253415244403 in words is "two hundred fifty-three billion, four hundred fifteen million, two hundred forty-four thousand, four hundred three".