63770057 has 4 divisors (see below), whose sum is σ = 68675460. Its totient is φ = 58864656.

The previous prime is 63770051. The next prime is 63770059. The reversal of 63770057 is 75007736.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23078416 + 40691641 = 4804^2 + 6379^2 .

It is a cyclic number.

It is not a de Polignac number, because 63770057 - 2¹⁶ = 63704521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63769999 and 63770026.

It is not an unprimeable number, because it can be changed into a prime (63770051) 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, 2452682 + ... + 2452707.

It is an arithmetic number, because the mean of its divisors is an integer number (17168865).

Almost surely, 2^63770057 is an apocalyptic number.

It is an amenable number.

63770057 is a deficient number, since it is larger than the sum of its proper divisors (4905403).

63770057 is a wasteful number, since it uses less digits than its factorization.

63770057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905402.

The product of its (nonzero) digits is 30870, while the sum is 35.

The square root of 63770057 is about 7985.6156306198. The cubic root of 63770057 is about 399.5203772182.

The spelling of 63770057 in words is "sixty-three million, seven hundred seventy thousand, fifty-seven".