1253500401 has 8 divisors (see below), whose sum is σ = 1675699200. Its totient is φ = 833484272.

The previous prime is 1253500373. The next prime is 1253500411. The reversal of 1253500401 is 1040053521.

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 1253500401 - 2⁹ = 1253499889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253500411) 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, 544326 + ... + 546623.

It is an arithmetic number, because the mean of its divisors is an integer number (209462400).

Almost surely, 2^1253500401 is an apocalyptic number.

It is an amenable number.

1253500401 is a deficient number, since it is larger than the sum of its proper divisors (422198799).

1253500401 is a wasteful number, since it uses less digits than its factorization.

1253500401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091335.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1253500401 is about 35404.8075972741. The cubic root of 1253500401 is about 1078.2219259282.

Adding to 1253500401 its reverse (1040053521), we get a palindrome (2293553922).

The spelling of 1253500401 in words is "one billion, two hundred fifty-three million, five hundred thousand, four hundred one".