2506397869 has 8 divisors (see below), whose sum is σ = 2519792352. Its totient is φ = 2493039120.

The previous prime is 2506397813. The next prime is 2506397879. The reversal of 2506397869 is 9687936052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506397869 - 2⁷ = 2506397741 is a prime.

It is a super-2 number, since 2×2506397869² = 12564060555455482322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506397809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138087 + ... + 155179.

It is an arithmetic number, because the mean of its divisors is an integer number (314974044).

Almost surely, 2^2506397869 is an apocalyptic number.

It is an amenable number.

2506397869 is a deficient number, since it is larger than the sum of its proper divisors (13394483).

2506397869 is a wasteful number, since it uses less digits than its factorization.

2506397869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17867.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The square root of 2506397869 is about 50063.9378095651. The cubic root of 2506397869 is about 1358.3655879561.

The spelling of 2506397869 in words is "two billion, five hundred six million, three hundred ninety-seven thousand, eight hundred sixty-nine".