65505070 has 16 divisors (see below), whose sum is σ = 119126448. Its totient is φ = 25931520.

The previous prime is 65505023. The next prime is 65505107. The reversal of 65505070 is 7050556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32796 + ... + 34735.

It is an arithmetic number, because the mean of its divisors is an integer number (7445403).

Almost surely, 2^65505070 is an apocalyptic number.

65505070 is a deficient number, since it is larger than the sum of its proper divisors (53621378).

65505070 is a wasteful number, since it uses less digits than its factorization.

65505070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67635.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 65505070 is about 8093.5202477043. The cubic root of 65505070 is about 403.1112992960. Note that the first 3 decimals are identical.

The spelling of 65505070 in words is "sixty-five million, five hundred five thousand, seventy".