65078253 has 12 divisors (see below), whose sum is σ = 94079388. Its totient is φ = 43349760.

The previous prime is 65078219. The next prime is 65078257. The reversal of 65078253 is 35287056.

It can be written as a sum of positive squares in 2 ways, for example, as 62773929 + 2304324 = 7923^2 + 1518^2 .

It is a de Polignac number, because none of the positive numbers 2^k-65078253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65078257) 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, 13143 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (7839949).

Almost surely, 2^65078253 is an apocalyptic number.

It is an amenable number.

65078253 is a deficient number, since it is larger than the sum of its proper divisors (29001135).

65078253 is a wasteful number, since it uses less digits than its factorization.

65078253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 65078253 is about 8067.1093335841. The cubic root of 65078253 is about 402.2338618463.

The spelling of 65078253 in words is "sixty-five million, seventy-eight thousand, two hundred fifty-three".