5651251223 has 4 divisors (see below), whose sum is σ = 5651407080. Its totient is φ = 5651095368.

The previous prime is 5651251219. The next prime is 5651251279. The reversal of 5651251223 is 3221521565.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5651251223 - 2² = 5651251219 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 5651251223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651256223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8168 + ... + 106626.

It is an arithmetic number, because the mean of its divisors is an integer number (1412851770).

Almost surely, 2^5651251223 is an apocalyptic number.

5651251223 is a deficient number, since it is larger than the sum of its proper divisors (155857).

5651251223 is an equidigital number, since it uses as much as digits as its factorization.

5651251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155856.

The product of its digits is 18000, while the sum is 32.

The square root of 5651251223 is about 75174.8044427121. The cubic root of 5651251223 is about 1781.2089610276.

Adding to 5651251223 its reverse (3221521565), we get a palindrome (8872772788).

The spelling of 5651251223 in words is "five billion, six hundred fifty-one million, two hundred fifty-one thousand, two hundred twenty-three".