78276325 has 6 divisors (see below), whose sum is σ = 97062674. Its totient is φ = 62621040.

The previous prime is 78276311. The next prime is 78276379. The reversal of 78276325 is 52367287.

It can be written as a sum of positive squares in 3 ways, for example, as 3038049 + 75238276 = 1743^2 + 8674^2 .

It is not a de Polignac number, because 78276325 - 2¹³ = 78268133 is a prime.

It is a super-2 number, since 2×78276325² = 12254366111011250, 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, 1565502 + ... + 1565551.

Almost surely, 2^78276325 is an apocalyptic number.

It is an amenable number.

78276325 is a deficient number, since it is larger than the sum of its proper divisors (18786349).

78276325 is a wasteful number, since it uses less digits than its factorization.

78276325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131063 (or 3131058 counting only the distinct ones).

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

The square root of 78276325 is about 8847.3908583265. The cubic root of 78276325 is about 427.7698215695.

The spelling of 78276325 in words is "seventy-eight million, two hundred seventy-six thousand, three hundred twenty-five".