63577012 has 6 divisors (see below), whose sum is σ = 111259778. Its totient is φ = 31788504.

The previous prime is 63576979. The next prime is 63577013. The reversal of 63577012 is 21077536.

It can be written as a sum of positive squares in only one way, i.e., 54552996 + 9024016 = 7386^2 + 3004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63577013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7947123 + ... + 7947130.

Almost surely, 2^63577012 is an apocalyptic number.

It is an amenable number.

63577012 is a deficient number, since it is larger than the sum of its proper divisors (47682766).

63577012 is a wasteful number, since it uses less digits than its factorization.

63577012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15894257 (or 15894255 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 63577012 is about 7973.5194236924. The cubic root of 63577012 is about 399.1168264463.

The spelling of 63577012 in words is "sixty-three million, five hundred seventy-seven thousand, twelve".