38780051 has 4 divisors (see below), whose sum is σ = 39437400. Its totient is φ = 38122704.

The previous prime is 38780017. The next prime is 38780089. The reversal of 38780051 is 15008783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15008783 = 107 ⋅140269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38780051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38780351) 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, 328586 + ... + 328703.

It is an arithmetic number, because the mean of its divisors is an integer number (9859350).

Almost surely, 2^38780051 is an apocalyptic number.

38780051 is a deficient number, since it is larger than the sum of its proper divisors (657349).

38780051 is an equidigital number, since it uses as much as digits as its factorization.

38780051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657348.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 38780051 is about 6227.3630856085. The cubic root of 38780051 is about 338.4824261942.

The spelling of 38780051 in words is "thirty-eight million, seven hundred eighty thousand, fifty-one".