51626541 has 4 divisors (see below), whose sum is σ = 68835392. Its totient is φ = 34417692.

The previous prime is 51626521. The next prime is 51626551. The reversal of 51626541 is 14562615.

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 not a de Polignac number, because 51626541 - 2¹⁹ = 51102253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51626499 and 51626508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51626521) 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, 8604421 + ... + 8604426.

It is an arithmetic number, because the mean of its divisors is an integer number (17208848).

Almost surely, 2^51626541 is an apocalyptic number.

It is an amenable number.

51626541 is a deficient number, since it is larger than the sum of its proper divisors (17208851).

51626541 is a wasteful number, since it uses less digits than its factorization.

51626541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17208850.

The product of its digits is 7200, while the sum is 30.

The square root of 51626541 is about 7185.1611672947. The cubic root of 51626541 is about 372.3554167649.

The spelling of 51626541 in words is "fifty-one million, six hundred twenty-six thousand, five hundred forty-one".