78125353 has 4 divisors (see below), whose sum is σ = 82720980. Its totient is φ = 73529728.

The previous prime is 78125329. The next prime is 78125393. The reversal of 78125353 is 35352187.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36096064 + 42029289 = 6008^2 + 6483^2 .

It is a cyclic number.

It is not a de Polignac number, because 78125353 - 2⁹ = 78124841 is a prime.

It is a super-2 number, since 2×78125353² = 12207141562749218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78125393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297788 + ... + 2297821.

It is an arithmetic number, because the mean of its divisors is an integer number (20680245).

Almost surely, 2^78125353 is an apocalyptic number.

It is an amenable number.

78125353 is a deficient number, since it is larger than the sum of its proper divisors (4595627).

78125353 is a wasteful number, since it uses less digits than its factorization.

78125353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595626.

The product of its digits is 25200, while the sum is 34.

The square root of 78125353 is about 8838.8547335048. The cubic root of 78125353 is about 427.4946305311.

The spelling of 78125353 in words is "seventy-eight million, one hundred twenty-five thousand, three hundred fifty-three".