51827623 has 4 divisors (see below), whose sum is σ = 51863920. Its totient is φ = 51791328.

The previous prime is 51827617. The next prime is 51827627. The reversal of 51827623 is 32672815.

It is a happy number.

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 51827623 - 2¹³ = 51819431 is a prime.

It is a super-2 number, since 2×51827623² = 5372205011660258, 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 (51827627) 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, 15915 + ... + 18892.

It is an arithmetic number, because the mean of its divisors is an integer number (12965980).

Almost surely, 2^51827623 is an apocalyptic number.

51827623 is a deficient number, since it is larger than the sum of its proper divisors (36297).

51827623 is a wasteful number, since it uses less digits than its factorization.

51827623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36296.

The product of its digits is 20160, while the sum is 34.

The square root of 51827623 is about 7199.1404348019. The cubic root of 51827623 is about 372.8382238026.

The spelling of 51827623 in words is "fifty-one million, eight hundred twenty-seven thousand, six hundred twenty-three".