65151601 has 4 divisors (see below), whose sum is σ = 65190400. Its totient is φ = 65112804.

The previous prime is 65151577. The next prime is 65151613. The reversal of 65151601 is 10615156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65151601 - 2⁷ = 65151473 is a prime.

It is a super-2 number, since 2×65151601² = 8489462225726402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65151631) 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, 16761 + ... + 20278.

It is an arithmetic number, because the mean of its divisors is an integer number (16297600).

Almost surely, 2^65151601 is an apocalyptic number.

It is an amenable number.

65151601 is a deficient number, since it is larger than the sum of its proper divisors (38799).

65151601 is a wasteful number, since it uses less digits than its factorization.

65151601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 65151601 is about 8071.6541675173. The cubic root of 65151601 is about 402.3849208705.

Adding to 65151601 its reverse (10615156), we get a palindrome (75766757).

The spelling of 65151601 in words is "sixty-five million, one hundred fifty-one thousand, six hundred one".