1252002401 has 16 divisors (see below), whose sum is σ = 1427954304. Its totient is φ = 1088930304.

The previous prime is 1252002391. The next prime is 1252002419. The reversal of 1252002401 is 1042002521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252002401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252002401.

It is not an unprimeable number, because it can be changed into a prime (1252002431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11216 + ... + 51281.

It is an arithmetic number, because the mean of its divisors is an integer number (89247144).

Almost surely, 2^1252002401 is an apocalyptic number.

It is an amenable number.

1252002401 is a deficient number, since it is larger than the sum of its proper divisors (175951903).

1252002401 is a wasteful number, since it uses less digits than its factorization.

1252002401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62600.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1252002401 is about 35383.6459540280. The cubic root of 1252002401 is about 1077.7922437681.

Adding to 1252002401 its reverse (1042002521), we get a palindrome (2294004922).

The spelling of 1252002401 in words is "one billion, two hundred fifty-two million, two thousand, four hundred one".