2523918749 has 8 divisors (see below), whose sum is σ = 2848309920. Its totient is φ = 2215351600.

The previous prime is 2523918739. The next prime is 2523918773. The reversal of 2523918749 is 9478193252.

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

It is a de Polignac number, because none of the positive numbers 2^k-2523918749 is a prime.

It is a super-3 number, since 3×2523918749³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2523918697 and 2523918706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523918739) 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, 3955667 + ... + 3956304.

It is an arithmetic number, because the mean of its divisors is an integer number (356038740).

Almost surely, 2^2523918749 is an apocalyptic number.

2523918749 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2523918749 is a deficient number, since it is larger than the sum of its proper divisors (324391171).

2523918749 is a wasteful number, since it uses less digits than its factorization.

2523918749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912011.

The product of its digits is 1088640, while the sum is 50.

The square root of 2523918749 is about 50238.6181040044. The cubic root of 2523918749 is about 1361.5234422378.

The spelling of 2523918749 in words is "two billion, five hundred twenty-three million, nine hundred eighteen thousand, seven hundred forty-nine".