78956025 has 12 divisors (see below), whose sum is σ = 130540752. Its totient is φ = 42109840.

The previous prime is 78956023. The next prime is 78956029. The reversal of 78956025 is 52065987.

It is not a de Polignac number, because 78956025 - 2¹ = 78956023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78956023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526299 + ... + 526448.

It is an arithmetic number, because the mean of its divisors is an integer number (10878396).

Almost surely, 2^78956025 is an apocalyptic number.

78956025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78956025 is a deficient number, since it is larger than the sum of its proper divisors (51584727).

78956025 is a wasteful number, since it uses less digits than its factorization.

78956025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052760 (or 1052755 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 78956025 is about 8885.7202859419. The cubic root of 78956025 is about 429.0044120150.

The spelling of 78956025 in words is "seventy-eight million, nine hundred fifty-six thousand, twenty-five".