77330253 has 48 divisors (see below), whose sum is σ = 139545728. Its totient is φ = 37065600.

The previous prime is 77330251. The next prime is 77330273. The reversal of 77330253 is 35203377.

It is not a de Polignac number, because 77330253 - 2¹ = 77330251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77330253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77330251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31863 + ... + 34203.

Almost surely, 2^77330253 is an apocalyptic number.

It is an amenable number.

77330253 is a deficient number, since it is larger than the sum of its proper divisors (62215475).

77330253 is a wasteful number, since it uses less digits than its factorization.

77330253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 77330253 is about 8793.7621641707. The cubic root of 77330253 is about 426.0394450900.

The spelling of 77330253 in words is "seventy-seven million, three hundred thirty thousand, two hundred fifty-three".