2520040451 has 2 divisors, whose sum is σ = 2520040452. Its totient is φ = 2520040450.

The previous prime is 2520040423. The next prime is 2520040469. The reversal of 2520040451 is 1540400252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2520040451 - 2⁶ = 2520040387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520042451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260020225 + 1260020226.

It is an arithmetic number, because the mean of its divisors is an integer number (1260020226).

Almost surely, 2^2520040451 is an apocalyptic number.

2520040451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520040451 is an equidigital number, since it uses as much as digits as its factorization.

2520040451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2520040451 is about 50200.0044920317. The cubic root of 2520040451 is about 1360.8257044303.

The spelling of 2520040451 in words is "two billion, five hundred twenty million, forty thousand, four hundred fifty-one".