1025501819 has 2 divisors, whose sum is σ = 1025501820. Its totient is φ = 1025501818.

The previous prime is 1025501773. The next prime is 1025501837. The reversal of 1025501819 is 9181055201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025501819 - 2⁸ = 1025501563 is a prime.

It is a super-2 number, since 2×1025501819² = 2103307961544617522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1025501899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512750909 + 512750910.

It is an arithmetic number, because the mean of its divisors is an integer number (512750910).

Almost surely, 2^1025501819 is an apocalyptic number.

1025501819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025501819 is an equidigital number, since it uses as much as digits as its factorization.

1025501819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 1025501819 is about 32023.4573242803. The cubic root of 1025501819 is about 1008.4293527000.

The spelling of 1025501819 in words is "one billion, twenty-five million, five hundred one thousand, eight hundred nineteen".