1253304553401 has 12 divisors (see below), whose sum is σ = 1877378014512. Its totient is φ = 835536368772.

The previous prime is 1253304553367. The next prime is 1253304553421. The reversal of 1253304553401 is 1043554033521.

1253304553401 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 304 + 5 + 5 + 340 + 1 = 666.

It is not a de Polignac number, because 1253304553401 - 2¹¹ = 1253304551353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253304553421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2578815711 + ... + 2578816196.

It is an arithmetic number, because the mean of its divisors is an integer number (156448167876).

Almost surely, 2^{1253304553401} is an apocalyptic number.

It is an amenable number.

1253304553401 is a deficient number, since it is larger than the sum of its proper divisors (624073461111).

1253304553401 is an frugal number, since it uses more digits than its factorization.

1253304553401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157631922 (or 5157631910 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 1253304553401 its reverse (1043554033521), we get a palindrome (2296858586922).

The spelling of 1253304553401 in words is "one trillion, two hundred fifty-three billion, three hundred four million, five hundred fifty-three thousand, four hundred one".