78346255 has 32 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 55114752.

The previous prime is 78346241. The next prime is 78346267. The reversal of 78346255 is 55264387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78346255 is a prime.

It is a super-2 number, since 2×78346255² = 12276271345050050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167532 + ... + 167998.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2^78346255 is an apocalyptic number.

78346255 is a deficient number, since it is larger than the sum of its proper divisors (27796145).

78346255 is a wasteful number, since it uses less digits than its factorization.

78346255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its digits is 201600, while the sum is 40.

The square root of 78346255 is about 8851.3419886478. The cubic root of 78346255 is about 427.8971697382.

The spelling of 78346255 in words is "seventy-eight million, three hundred forty-six thousand, two hundred fifty-five".