78025351 has 2 divisors, whose sum is σ = 78025352. Its totient is φ = 78025350.

The previous prime is 78025331. The next prime is 78025397. The reversal of 78025351 is 15352087.

It is a weak prime.

It is an emirp because it is prime and its reverse (15352087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78025351 - 2²⁵ = 44470919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78025331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39012675 + 39012676.

It is an arithmetic number, because the mean of its divisors is an integer number (39012676).

Almost surely, 2^78025351 is an apocalyptic number.

78025351 is a deficient number, since it is larger than the sum of its proper divisors (1).

78025351 is an equidigital number, since it uses as much as digits as its factorization.

78025351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 78025351 is about 8833.1959674854. The cubic root of 78025351 is about 427.3121521175.

The spelling of 78025351 in words is "seventy-eight million, twenty-five thousand, three hundred fifty-one".