65610051 has 16 divisors (see below), whose sum is σ = 94419360. Its totient is φ = 40285440.

The previous prime is 65610049. The next prime is 65610079. The reversal of 65610051 is 15001656.

It is not a de Polignac number, because 65610051 - 2¹ = 65610049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65610001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18705 + ... + 21933.

It is an arithmetic number, because the mean of its divisors is an integer number (5901210).

Almost surely, 2^65610051 is an apocalyptic number.

65610051 is a deficient number, since it is larger than the sum of its proper divisors (28809309).

65610051 is a wasteful number, since it uses less digits than its factorization.

65610051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 65610051 is about 8100.0031481475. The cubic root of 65610051 is about 403.3265316948.

The spelling of 65610051 in words is "sixty-five million, six hundred ten thousand, fifty-one".