51774426 has 48 divisors (see below), whose sum is σ = 127707840. Its totient is φ = 15005760.

The previous prime is 51774419. The next prime is 51774439. The reversal of 51774426 is 62447715.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1131 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (2660580).

Almost surely, 2^51774426 is an apocalyptic number.

51774426 is an abundant number, since it is smaller than the sum of its proper divisors (75933414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51774426 is a wasteful number, since it uses less digits than its factorization.

51774426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411 (or 11408 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 51774426 is about 7195.4448090441. Note that the first 3 decimals coincide. The cubic root of 51774426 is about 372.7106170446.

Subtracting 51774426 from its reverse (62447715), we obtain a square (10673289 = 3267²).

It can be divided in two parts, 51 and 774426, that added together give a palindrome (774477).

The spelling of 51774426 in words is "fifty-one million, seven hundred seventy-four thousand, four hundred twenty-six".