51623526 has 16 divisors (see below), whose sum is σ = 109320624. Its totient is φ = 16195584.

The previous prime is 51623519. The next prime is 51623527. The reversal of 51623526 is 62532615.

It is a junction number, because it is equal to n+sod(n) for n = 51623493 and 51623502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51623527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252955 + ... + 253158.

It is an arithmetic number, because the mean of its divisors is an integer number (6832539).

Almost surely, 2^51623526 is an apocalyptic number.

51623526 is an abundant number, since it is smaller than the sum of its proper divisors (57697098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51623526 is a wasteful number, since it uses less digits than its factorization.

51623526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506135.

The product of its digits is 10800, while the sum is 30.

The square root of 51623526 is about 7184.9513568291. The cubic root of 51623526 is about 372.3481680810.

It can be divided in two parts, 516 and 23526, that added together give a palindrome (24042).

The spelling of 51623526 in words is "fifty-one million, six hundred twenty-three thousand, five hundred twenty-six".