78592051 has 4 divisors (see below), whose sum is σ = 78660792. Its totient is φ = 78523312.

The previous prime is 78592049. The next prime is 78592067. The reversal of 78592051 is 15029587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78592051 - 2¹ = 78592049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78592051.

It is not an unprimeable number, because it can be changed into a prime (78592021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32626 + ... + 34951.

It is an arithmetic number, because the mean of its divisors is an integer number (19665198).

Almost surely, 2^78592051 is an apocalyptic number.

78592051 is a deficient number, since it is larger than the sum of its proper divisors (68741).

78592051 is a wasteful number, since it uses less digits than its factorization.

78592051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68740.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 78592051 is about 8865.2157898158. The cubic root of 78592051 is about 428.3441837232.

The spelling of 78592051 in words is "seventy-eight million, five hundred ninety-two thousand, fifty-one".