78119025 has 24 divisors (see below), whose sum is σ = 132652224. Its totient is φ = 40536000.

The previous prime is 78119023. The next prime is 78119033. The reversal of 78119025 is 52091187.

It is not a de Polignac number, because 78119025 - 2¹ = 78119023 is a prime.

It is a super-2 number, since 2×78119025² = 12205164133901250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78119021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11301 + ... + 16850.

It is an arithmetic number, because the mean of its divisors is an integer number (5527176).

Almost surely, 2^78119025 is an apocalyptic number.

78119025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78119025 is a deficient number, since it is larger than the sum of its proper divisors (54533199).

78119025 is a wasteful number, since it uses less digits than its factorization.

78119025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28201 (or 28196 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 78119025 is about 8838.4967613277. The cubic root of 78119025 is about 427.4830881446.

It can be divided in two parts, 7811 and 9025, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 78119025 in words is "seventy-eight million, one hundred nineteen thousand, twenty-five".