57780503 has 4 divisors (see below), whose sum is σ = 63033288. Its totient is φ = 52527720.

The previous prime is 57780487. The next prime is 57780511. The reversal of 57780503 is 30508775.

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 57780503 - 2⁴ = 57780487 is a prime.

It is a super-4 number, since 4×57780503⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57780523) 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, 2626376 + ... + 2626397.

It is an arithmetic number, because the mean of its divisors is an integer number (15758322).

Almost surely, 2^57780503 is an apocalyptic number.

57780503 is a deficient number, since it is larger than the sum of its proper divisors (5252785).

57780503 is a wasteful number, since it uses less digits than its factorization.

57780503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252784.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 57780503 is about 7601.3487618975. The cubic root of 57780503 is about 386.5987445928.

The spelling of 57780503 in words is "fifty-seven million, seven hundred eighty thousand, five hundred three".