78253003 has 2 divisors, whose sum is σ = 78253004. Its totient is φ = 78253002.

The previous prime is 78252973. The next prime is 78253009. The reversal of 78253003 is 30035287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78253003 - 2¹⁷ = 78121931 is a prime.

It is a super-2 number, since 2×78253003² = 12247064957036018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78253009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39126501 + 39126502.

It is an arithmetic number, because the mean of its divisors is an integer number (39126502).

Almost surely, 2^78253003 is an apocalyptic number.

78253003 is a deficient number, since it is larger than the sum of its proper divisors (1).

78253003 is an equidigital number, since it uses as much as digits as its factorization.

78253003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 78253003 is about 8846.0727444443. The cubic root of 78253003 is about 427.7273334619.

The spelling of 78253003 in words is "seventy-eight million, two hundred fifty-three thousand, three".