51877741 has 4 divisors (see below), whose sum is σ = 52391484. Its totient is φ = 51364000.

The previous prime is 51877729. The next prime is 51877747. The reversal of 51877741 is 14777815.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28933641 + 22944100 = 5379^2 + 4790^2 .

It is a cyclic number.

It is not a de Polignac number, because 51877741 - 2¹⁵ = 51844973 is a prime.

It is a super-2 number, since 2×51877741² = 5382600022526162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51877694 and 51877703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51877747) 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, 256720 + ... + 256921.

It is an arithmetic number, because the mean of its divisors is an integer number (13097871).

Almost surely, 2^51877741 is an apocalyptic number.

It is an amenable number.

51877741 is a deficient number, since it is larger than the sum of its proper divisors (513743).

51877741 is a wasteful number, since it uses less digits than its factorization.

51877741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513742.

The product of its digits is 54880, while the sum is 40.

The square root of 51877741 is about 7202.6204259283. The cubic root of 51877741 is about 372.9583649235.

The spelling of 51877741 in words is "fifty-one million, eight hundred seventy-seven thousand, seven hundred forty-one".