65253870 has 128 divisors (see below), whose sum is σ = 192430080. Its totient is φ = 15603840.

The previous prime is 65253863. The next prime is 65253893. The reversal of 65253870 is 7835256.

65253870 is a `hidden beast` number, since 6 + 52 + 538 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 377104 + ... + 377276.

It is an arithmetic number, because the mean of its divisors is an integer number (1503360).

Almost surely, 2^65253870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65253870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96215040).

65253870 is an abundant number, since it is smaller than the sum of its proper divisors (127176210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65253870 is a wasteful number, since it uses less digits than its factorization.

65253870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

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

The square root of 65253870 is about 8077.9867541362. The cubic root of 65253870 is about 402.5953531017.

The spelling of 65253870 in words is "sixty-five million, two hundred fifty-three thousand, eight hundred seventy".