51120626 has 4 divisors (see below), whose sum is σ = 76680942. Its totient is φ = 25560312.

The previous prime is 51120617. The next prime is 51120647. The reversal of 51120626 is 62602115.

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

It can be written as a sum of positive squares in only one way, i.e., 32501401 + 18619225 = 5701^2 + 4315^2 .

It is a super-2 number, since 2×51120626² = 5226636805263752, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12780155 + ... + 12780158.

Almost surely, 2^51120626 is an apocalyptic number.

51120626 is a deficient number, since it is larger than the sum of its proper divisors (25560316).

51120626 is a wasteful number, since it uses less digits than its factorization.

51120626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25560315.

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

The square root of 51120626 is about 7149.8689498480. The cubic root of 51120626 is about 371.1351212615.

The spelling of 51120626 in words is "fifty-one million, one hundred twenty thousand, six hundred twenty-six".