51778092 has 24 divisors (see below), whose sum is σ = 120961456. Its totient is φ = 17238528.

The previous prime is 51778061. The next prime is 51778093. The reversal of 51778092 is 29087715.

It is a super-2 number, since 2×51778092² = 5361941622320928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51778092.

It is not an unprimeable number, because it can be changed into a prime (51778093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10308 + ... + 14484.

Almost surely, 2^51778092 is an apocalyptic number.

It is an amenable number.

51778092 is an abundant number, since it is smaller than the sum of its proper divisors (69183364).

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

51778092 is a wasteful number, since it uses less digits than its factorization.

51778092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 51778092 is about 7195.6995490362. The cubic root of 51778092 is about 372.7194136969.

The spelling of 51778092 in words is "fifty-one million, seven hundred seventy-eight thousand, ninety-two".