10506023251 has 4 divisors (see below), whose sum is σ = 10507593600. Its totient is φ = 10504452904.

The previous prime is 10506023243. The next prime is 10506023261. The reversal of 10506023251 is 15232060501.

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 10506023251 - 2³ = 10506023243 is a prime.

It is a super-2 number, since 2×10506023251² (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 (10506023221) 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, 775096 + ... + 788533.

It is an arithmetic number, because the mean of its divisors is an integer number (2626898400).

Almost surely, 2^10506023251 is an apocalyptic number.

10506023251 is a deficient number, since it is larger than the sum of its proper divisors (1570349).

10506023251 is an equidigital number, since it uses as much as digits as its factorization.

10506023251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570348.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 10506023251 its reverse (15232060501), we get a palindrome (25738083752).

The spelling of 10506023251 in words is "ten billion, five hundred six million, twenty-three thousand, two hundred fifty-one".