655010051 has 4 divisors (see below), whose sum is σ = 693540072. Its totient is φ = 616480032.

The previous prime is 655010011. The next prime is 655010071. The reversal of 655010051 is 150010556.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655010051 is a prime.

It is a super-2 number, since 2×655010051² = 858076333822045202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655009999 and 655010026.

It is not an unprimeable number, because it can be changed into a prime (655010011) 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, 19264985 + ... + 19265018.

It is an arithmetic number, because the mean of its divisors is an integer number (173385018).

Almost surely, 2^655010051 is an apocalyptic number.

655010051 is a deficient number, since it is larger than the sum of its proper divisors (38530021).

655010051 is a wasteful number, since it uses less digits than its factorization.

655010051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38530020.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 655010051 is about 25593.1641459199. The cubic root of 655010051 is about 868.4590024051.

The spelling of 655010051 in words is "six hundred fifty-five million, ten thousand, fifty-one".