78252335 has 16 divisors (see below), whose sum is σ = 107467776. Its totient is φ = 53583648.

The previous prime is 78252331. The next prime is 78252337. The reversal of 78252335 is 53325287.

It is a cyclic number.

It is not a de Polignac number, because 78252335 - 2² = 78252331 is a prime.

It is a super-2 number, since 2×78252335² = 12246855865904450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 78252295 and 78252304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78252331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37592 + ... + 39618.

It is an arithmetic number, because the mean of its divisors is an integer number (6716736).

Almost surely, 2^78252335 is an apocalyptic number.

78252335 is a deficient number, since it is larger than the sum of its proper divisors (29215441).

78252335 is a wasteful number, since it uses less digits than its factorization.

78252335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142.

The product of its digits is 50400, while the sum is 35.

The square root of 78252335 is about 8846.0349874958. The cubic root of 78252335 is about 427.7261163727.

It can be divided in two parts, 78252 and 335, that added together give a palindrome (78587).

The spelling of 78252335 in words is "seventy-eight million, two hundred fifty-two thousand, three hundred thirty-five".