77630053 has 2 divisors, whose sum is σ = 77630054. Its totient is φ = 77630052.

The previous prime is 77630039. The next prime is 77630087. The reversal of 77630053 is 35003677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 24383844 = 7297^2 + 4938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77630053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77629997 and 77630024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77630023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38815026 + 38815027.

It is an arithmetic number, because the mean of its divisors is an integer number (38815027).

Almost surely, 2^77630053 is an apocalyptic number.

It is an amenable number.

77630053 is a deficient number, since it is larger than the sum of its proper divisors (1).

77630053 is an equidigital number, since it uses as much as digits as its factorization.

77630053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 77630053 is about 8810.7918486365. The cubic root of 77630053 is about 426.5893028541.

The spelling of 77630053 in words is "seventy-seven million, six hundred thirty thousand, fifty-three".