1253516001 has 32 divisors (see below), whose sum is σ = 1736017920. Its totient is φ = 804019200.

The previous prime is 1253515979. The next prime is 1253516041. The reversal of 1253516001 is 1006153521.

It is not a de Polignac number, because 1253516001 - 2¹¹ = 1253513953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253516041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5379781 + ... + 5380013.

It is an arithmetic number, because the mean of its divisors is an integer number (54250560).

Almost surely, 2^1253516001 is an apocalyptic number.

It is an amenable number.

1253516001 is a deficient number, since it is larger than the sum of its proper divisors (482501919).

1253516001 is a wasteful number, since it uses less digits than its factorization.

1253516001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1253516001 is about 35405.0279056520. The cubic root of 1253516001 is about 1078.2263987873.

Adding to 1253516001 its reverse (1006153521), we get a palindrome (2259669522).

The spelling of 1253516001 in words is "one billion, two hundred fifty-three million, five hundred sixteen thousand, one".