51120662 has 4 divisors (see below), whose sum is σ = 76680996. Its totient is φ = 25560330.

The previous prime is 51120661. The next prime is 51120677. The reversal of 51120662 is 26602115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26602115 = 5 ⋅5320423.

It is a super-2 number, since 2×51120662² = 5226644166636488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51120661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12780164 + ... + 12780167.

It is an arithmetic number, because the mean of its divisors is an integer number (19170249).

Almost surely, 2^51120662 is an apocalyptic number.

51120662 is a deficient number, since it is larger than the sum of its proper divisors (25560334).

51120662 is a wasteful number, since it uses less digits than its factorization.

51120662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25560333.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 51120662 is about 7149.8714673762. The cubic root of 51120662 is about 371.1352083813.

Adding to 51120662 its reverse (26602115), we get a palindrome (77722777).

The spelling of 51120662 in words is "fifty-one million, one hundred twenty thousand, six hundred sixty-two".