2572403987 has 2 divisors, whose sum is σ = 2572403988. Its totient is φ = 2572403986.

The previous prime is 2572403971. The next prime is 2572403993. The reversal of 2572403987 is 7893042752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2572403987 - 2⁴ = 2572403971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2572403957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286201993 + 1286201994.

It is an arithmetic number, because the mean of its divisors is an integer number (1286201994).

Almost surely, 2^2572403987 is an apocalyptic number.

2572403987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2572403987 is an equidigital number, since it uses as much as digits as its factorization.

2572403987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 2572403987 is about 50718.8720990520. The cubic root of 2572403987 is about 1370.1866275672.

The spelling of 2572403987 in words is "two billion, five hundred seventy-two million, four hundred three thousand, nine hundred eighty-seven".