651006051 has 4 divisors (see below), whose sum is σ = 868008072. Its totient is φ = 434004032.

The previous prime is 651006047. The next prime is 651006067. The reversal of 651006051 is 150600156.

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

It is a cyclic number.

It is not a de Polignac number, because 651006051 - 2² = 651006047 is a prime.

It is a super-2 number, since 2×651006051² = 847617756877229202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651006011) 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, 108501006 + ... + 108501011.

It is an arithmetic number, because the mean of its divisors is an integer number (217002018).

Almost surely, 2^651006051 is an apocalyptic number.

651006051 is a deficient number, since it is larger than the sum of its proper divisors (217002021).

651006051 is a wasteful number, since it uses less digits than its factorization.

651006051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217002020.

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

The square root of 651006051 is about 25514.8202227647. The cubic root of 651006051 is about 866.6857881547.

The spelling of 651006051 in words is "six hundred fifty-one million, six thousand, fifty-one".