2499514921 has 8 divisors (see below), whose sum is σ = 2514304584. Its totient is φ = 2484746880.

The previous prime is 2499514907. The next prime is 2499514937. The reversal of 2499514921 is 1294159942.

It is a happy number.

2499514921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2421722521 + 77792400 = 49211^2 + 8820^2 .

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 2499514921 - 2¹³ = 2499506729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499514991) 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, 265861 + ... + 275101.

It is an arithmetic number, because the mean of its divisors is an integer number (314288073).

Almost surely, 2^2499514921 is an apocalyptic number.

It is an amenable number.

2499514921 is a deficient number, since it is larger than the sum of its proper divisors (14789663).

2499514921 is a wasteful number, since it uses less digits than its factorization.

2499514921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811.

The product of its digits is 233280, while the sum is 46.

The square root of 2499514921 is about 49995.1489746755. The cubic root of 2499514921 is about 1357.1210221539.

The spelling of 2499514921 in words is "two billion, four hundred ninety-nine million, five hundred fourteen thousand, nine hundred twenty-one".