651565045 has 8 divisors (see below), whose sum is σ = 815872896. Its totient is φ = 498588816.

The previous prime is 651564997. The next prime is 651565073. The reversal of 651565045 is 540565156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 651565045 - 2⁹ = 651564533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 651564995 and 651565013.

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, 2832777 + ... + 2833006.

It is an arithmetic number, because the mean of its divisors is an integer number (101984112).

Almost surely, 2^651565045 is an apocalyptic number.

It is an amenable number.

651565045 is a deficient number, since it is larger than the sum of its proper divisors (164307851).

651565045 is a wasteful number, since it uses less digits than its factorization.

651565045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665811.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 651565045 is about 25525.7721724535. The cubic root of 651565045 is about 866.9337805018.

The spelling of 651565045 in words is "six hundred fifty-one million, five hundred sixty-five thousand, forty-five".