51177941 has 4 divisors (see below), whose sum is σ = 51192492. Its totient is φ = 51163392.

The previous prime is 51177911. The next prime is 51177943. The reversal of 51177941 is 14977115.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13845841 + 37332100 = 3721^2 + 6110^2 .

It is a cyclic number.

It is not a de Polignac number, because 51177941 - 2¹⁴ = 51161557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51177943) 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, 1655 + ... + 10251.

It is an arithmetic number, because the mean of its divisors is an integer number (12798123).

Almost surely, 2^51177941 is an apocalyptic number.

It is an amenable number.

51177941 is a deficient number, since it is larger than the sum of its proper divisors (14551).

51177941 is an equidigital number, since it uses as much as digits as its factorization.

51177941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14550.

The product of its digits is 8820, while the sum is 35.

The square root of 51177941 is about 7153.8759424525. The cubic root of 51177941 is about 371.2737715244.

The spelling of 51177941 in words is "fifty-one million, one hundred seventy-seven thousand, nine hundred forty-one".