2285515787 has 2 divisors, whose sum is σ = 2285515788. Its totient is φ = 2285515786.

The previous prime is 2285515777. The next prime is 2285515801. The reversal of 2285515787 is 7875155822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2285515787 - 2²⁶ = 2218406923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2285515777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142757893 + 1142757894.

It is an arithmetic number, because the mean of its divisors is an integer number (1142757894).

Almost surely, 2^2285515787 is an apocalyptic number.

2285515787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2285515787 is an equidigital number, since it uses as much as digits as its factorization.

2285515787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568000, while the sum is 50.

The square root of 2285515787 is about 47807.0683790588. The cubic root of 2285515787 is about 1317.2293790096.

The spelling of 2285515787 in words is "two billion, two hundred eighty-five million, five hundred fifteen thousand, seven hundred eighty-seven".