651457085 has 32 divisors (see below), whose sum is σ = 875629440. Its totient is φ = 462385152.

The previous prime is 651457069. The next prime is 651457109. The reversal of 651457085 is 580754156.

It is a cyclic number.

It is not a de Polignac number, because 651457085 - 2⁴ = 651457069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365717 + ... + 367493.

It is an arithmetic number, because the mean of its divisors is an integer number (27363420).

Almost surely, 2^651457085 is an apocalyptic number.

It is an amenable number.

651457085 is a deficient number, since it is larger than the sum of its proper divisors (224172355).

651457085 is a wasteful number, since it uses less digits than its factorization.

651457085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 651457085 is about 25523.6573593989. The cubic root of 651457085 is about 866.8858961340.

The spelling of 651457085 in words is "six hundred fifty-one million, four hundred fifty-seven thousand, eighty-five".