51779476 has 36 divisors (see below), whose sum is σ = 107008608. Its totient is φ = 21854448.

The previous prime is 51779461. The next prime is 51779479. The reversal of 51779476 is 67497715.

It is a super-2 number, since 2×51779476² = 5362228269669152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51779479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11161 + ... + 15103.

Almost surely, 2^51779476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51779476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53504304).

51779476 is an abundant number, since it is smaller than the sum of its proper divisors (55229132).

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

51779476 is a wasteful number, since it uses less digits than its factorization.

51779476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028 (or 4019 counting only the distinct ones).

The product of its digits is 370440, while the sum is 46.

The square root of 51779476 is about 7195.7957169447. The cubic root of 51779476 is about 372.7227345291.

The spelling of 51779476 in words is "fifty-one million, seven hundred seventy-nine thousand, four hundred seventy-six".