78052525 has 24 divisors (see below), whose sum is σ = 104886144. Its totient is φ = 57388800.

The previous prime is 78052523. The next prime is 78052537. The reversal of 78052525 is 52525087.

It is not a de Polignac number, because 78052525 - 2¹ = 78052523 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78052523) 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, 16140 + ... + 20410.

It is an arithmetic number, because the mean of its divisors is an integer number (4370256).

Almost surely, 2^78052525 is an apocalyptic number.

It is an amenable number.

78052525 is a deficient number, since it is larger than the sum of its proper divisors (26833619).

78052525 is a wasteful number, since it uses less digits than its factorization.

78052525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341 (or 4336 counting only the distinct ones).

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

The square root of 78052525 is about 8834.7340084464. The cubic root of 78052525 is about 427.3617532301.

The spelling of 78052525 in words is "seventy-eight million, fifty-two thousand, five hundred twenty-five".