77975253 has 12 divisors (see below), whose sum is σ = 114218208. Its totient is φ = 51250920.

The previous prime is 77975251. The next prime is 77975257. The reversal of 77975253 is 35257977.

It is a happy number.

It is not a de Polignac number, because 77975253 - 2¹ = 77975251 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77975199 and 77975208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77975251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60375 + ... + 61652.

It is an arithmetic number, because the mean of its divisors is an integer number (9518184).

Almost surely, 2^77975253 is an apocalyptic number.

It is an amenable number.

77975253 is a deficient number, since it is larger than the sum of its proper divisors (36242955).

77975253 is a wasteful number, since it uses less digits than its factorization.

77975253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122104 (or 122101 counting only the distinct ones).

The product of its digits is 463050, while the sum is 45.

The square root of 77975253 is about 8830.3597321966. The cubic root of 77975253 is about 427.2206772858.

The spelling of 77975253 in words is "seventy-seven million, nine hundred seventy-five thousand, two hundred fifty-three".