51877340 has 24 divisors (see below), whose sum is σ = 109408320. Its totient is φ = 20662208.

The previous prime is 51877339. The next prime is 51877349. The reversal of 51877340 is 4377815.

51877340 = 2543² + 2544² + ... + 2550².

It is a self number, because there is not a number n which added to its sum of digits gives 51877340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51877349) 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, 647 + ... + 10206.

It is an arithmetic number, because the mean of its divisors is an integer number (4558680).

Almost surely, 2^51877340 is an apocalyptic number.

It is an amenable number.

51877340 is an abundant number, since it is smaller than the sum of its proper divisors (57530980).

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

51877340 is a wasteful number, since it uses less digits than its factorization.

51877340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101 (or 11099 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 51877340 is about 7202.5925887836. The cubic root of 51877340 is about 372.9574039674.

The spelling of 51877340 in words is "fifty-one million, eight hundred seventy-seven thousand, three hundred forty".