51641529 has 16 divisors (see below), whose sum is σ = 74878848. Its totient is φ = 31525632.

The previous prime is 51641507. The next prime is 51641531. The reversal of 51641529 is 92514615.

It is not a de Polignac number, because 51641529 - 2¹² = 51637433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51641529.

It is not an unprimeable number, because it can be changed into a prime (51641549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11797 + ... + 15570.

It is an arithmetic number, because the mean of its divisors is an integer number (4679928).

Almost surely, 2^51641529 is an apocalyptic number.

It is an amenable number.

51641529 is a deficient number, since it is larger than the sum of its proper divisors (23237319).

51641529 is a wasteful number, since it uses less digits than its factorization.

51641529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27424.

The product of its digits is 10800, while the sum is 33.

The square root of 51641529 is about 7186.2040744749. The cubic root of 51641529 is about 372.3914468307.

The spelling of 51641529 in words is "fifty-one million, six hundred forty-one thousand, five hundred twenty-nine".