65150551 has 4 divisors (see below), whose sum is σ = 65619400. Its totient is φ = 64681704.

The previous prime is 65150549. The next prime is 65150593. The reversal of 65150551 is 15505156.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65150551 - 2¹ = 65150549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65150531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234216 + ... + 234493.

It is an arithmetic number, because the mean of its divisors is an integer number (16404850).

Almost surely, 2^65150551 is an apocalyptic number.

65150551 is a deficient number, since it is larger than the sum of its proper divisors (468849).

65150551 is a wasteful number, since it uses less digits than its factorization.

65150551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468848.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 65150551 is about 8071.5891248254. The cubic root of 65150551 is about 402.3827592126.

The spelling of 65150551 in words is "sixty-five million, one hundred fifty thousand, five hundred fifty-one".