2520240451 has 4 divisors (see below), whose sum is σ = 2540084992. Its totient is φ = 2500395912.

The previous prime is 2520240407. The next prime is 2520240473. The reversal of 2520240451 is 1540420252.

2520240451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2520240451 - 2¹⁹ = 2519716163 is a prime.

It is a super-2 number, since 2×2520240451² = 12703223861713366802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520240551) 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, 9922080 + ... + 9922333.

It is an arithmetic number, because the mean of its divisors is an integer number (635021248).

Almost surely, 2^2520240451 is an apocalyptic number.

2520240451 is a deficient number, since it is larger than the sum of its proper divisors (19844541).

2520240451 is a wasteful number, since it uses less digits than its factorization.

2520240451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19844540.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2520240451 is about 50201.9964842037. The cubic root of 2520240451 is about 1360.8617035801.

The spelling of 2520240451 in words is "two billion, five hundred twenty million, two hundred forty thousand, four hundred fifty-one".