51586061 has 4 divisors (see below), whose sum is σ = 51735072. Its totient is φ = 51437052.

The previous prime is 51586057. The next prime is 51586081. The reversal of 51586061 is 16068515.

It is a happy number.

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 51586061 - 2² = 51586057 is a prime.

It is a super-2 number, since 2×51586061² = 5322243378991442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51586081) 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, 73985 + ... + 74678.

It is an arithmetic number, because the mean of its divisors is an integer number (12933768).

Almost surely, 2^51586061 is an apocalyptic number.

It is an amenable number.

51586061 is a deficient number, since it is larger than the sum of its proper divisors (149011).

51586061 is a wasteful number, since it uses less digits than its factorization.

51586061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149010.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 51586061 is about 7182.3436982645. The cubic root of 51586061 is about 372.2580709151.

The spelling of 51586061 in words is "fifty-one million, five hundred eighty-six thousand, sixty-one".