78025552 has 40 divisors (see below), whose sum is σ = 173604960. Its totient is φ = 33598080.

The previous prime is 78025537. The next prime is 78025559. The reversal of 78025552 is 25552087.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78025559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8323 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (4340124).

Almost surely, 2^78025552 is an apocalyptic number.

It is an amenable number.

78025552 is an abundant number, since it is smaller than the sum of its proper divisors (95579408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78025552 is a wasteful number, since it uses less digits than its factorization.

78025552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23371 (or 23365 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 78025552 is about 8833.2073450135. The cubic root of 78025552 is about 427.3125190481.

The spelling of 78025552 in words is "seventy-eight million, twenty-five thousand, five hundred fifty-two".