2551251023 has 4 divisors (see below), whose sum is σ = 2587184208. Its totient is φ = 2515317840.

The previous prime is 2551250963. The next prime is 2551251071. The reversal of 2551251023 is 3201521552.

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

It is a cyclic number.

It is not a de Polignac number, because 2551251023 - 2¹² = 2551246927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551250983 and 2551251001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551251623) 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, 17966486 + ... + 17966627.

It is an arithmetic number, because the mean of its divisors is an integer number (646796052).

Almost surely, 2^2551251023 is an apocalyptic number.

2551251023 is a deficient number, since it is larger than the sum of its proper divisors (35933185).

2551251023 is an equidigital number, since it uses as much as digits as its factorization.

2551251023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35933184.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2551251023 is about 50509.9101464257. The cubic root of 2551251023 is about 1366.4205890545.

Adding to 2551251023 its reverse (3201521552), we get a palindrome (5752772575).

The spelling of 2551251023 in words is "two billion, five hundred fifty-one million, two hundred fifty-one thousand, twenty-three".