78267325 has 6 divisors (see below), whose sum is σ = 97051514. Its totient is φ = 62613840.

The previous prime is 78267313. The next prime is 78267349. The reversal of 78267325 is 52376287.

It can be written as a sum of positive squares in 3 ways, for example, as 6543364 + 71723961 = 2558^2 + 8469^2 .

It is not a de Polignac number, because 78267325 - 2¹⁹ = 77743037 is a prime.

It is a super-2 number, since 2×78267325² = 12251548325311250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1565322 + ... + 1565371.

Almost surely, 2^78267325 is an apocalyptic number.

It is an amenable number.

78267325 is a deficient number, since it is larger than the sum of its proper divisors (18784189).

78267325 is a wasteful number, since it uses less digits than its factorization.

78267325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130703 (or 3130698 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 78267325 is about 8846.8822191776. The cubic root of 78267325 is about 427.7534263357.

It can be divided in two parts, 7826 and 7325, that added together give a palindrome (15151).

The spelling of 78267325 in words is "seventy-eight million, two hundred sixty-seven thousand, three hundred twenty-five".