11251560401 has 4 divisors (see below), whose sum is σ = 11256296292. Its totient is φ = 11246824512.

The previous prime is 11251560269. The next prime is 11251560409. The reversal of 11251560401 is 10406515211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7582229776 + 3669330625 = 87076^2 + 60575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11251560401 - 2¹⁰ = 11251559377 is a prime.

It is a super-2 number, since 2×11251560401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11251560409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364380 + ... + 2369133.

It is an arithmetic number, because the mean of its divisors is an integer number (2814074073).

Almost surely, 2^11251560401 is an apocalyptic number.

It is an amenable number.

11251560401 is a deficient number, since it is larger than the sum of its proper divisors (4735891).

11251560401 is an equidigital number, since it uses as much as digits as its factorization.

11251560401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735890.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 11251560401 in words is "eleven billion, two hundred fifty-one million, five hundred sixty thousand, four hundred one".