78052503 has 8 divisors (see below), whose sum is σ = 104114416. Its totient is φ = 52012800.

The previous prime is 78052493. The next prime is 78052511. The reversal of 78052503 is 30525087.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78052503 - 2¹³ = 78044311 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 6213 + ... + 13953.

It is an arithmetic number, because the mean of its divisors is an integer number (13014302).

Almost surely, 2^78052503 is an apocalyptic number.

78052503 is a deficient number, since it is larger than the sum of its proper divisors (26061913).

78052503 is a wasteful number, since it uses less digits than its factorization.

78052503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 78052503 is about 8834.7327633608. The cubic root of 78052503 is about 427.3617130778.

The spelling of 78052503 in words is "seventy-eight million, fifty-two thousand, five hundred three".