51122450 has 12 divisors (see below), whose sum is σ = 95087850. Its totient is φ = 20448960.

The previous prime is 51122437. The next prime is 51122471. The reversal of 51122450 is 5422115.

It can be written as a sum of positive squares in 3 ways, for example, as 42994249 + 8128201 = 6557^2 + 2851^2 .

It is a super-2 number, since 2×51122450² = 5227009788005000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 511175 + ... + 511274.

Almost surely, 2^51122450 is an apocalyptic number.

51122450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51122450 is a deficient number, since it is larger than the sum of its proper divisors (43965400).

51122450 is a wasteful number, since it uses less digits than its factorization.

51122450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022461 (or 1022456 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51122450 is about 7149.9965034956. The cubic root of 51122450 is about 371.1395352816.

Adding to 51122450 its reverse (5422115), we get a palindrome (56544565).

The spelling of 51122450 in words is "fifty-one million, one hundred twenty-two thousand, four hundred fifty".