51380352 has 64 divisors (see below), whose sum is σ = 151653600. Its totient is φ = 17125632.

The previous prime is 51380347. The next prime is 51380359. The reversal of 51380352 is 25308315.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51380359) 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, 3978 + ... + 10889.

Almost surely, 2^51380352 is an apocalyptic number.

It is an amenable number.

51380352 is an abundant number, since it is smaller than the sum of its proper divisors (100273248).

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

51380352 is a wasteful number, since it uses less digits than its factorization.

51380352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14890 (or 14872 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51380352 is about 7168.0089285659. The cubic root of 51380352 is about 371.7625956630.

Adding to 51380352 its reverse (25308315), we get a palindrome (76688667).

The spelling of 51380352 in words is "fifty-one million, three hundred eighty thousand, three hundred fifty-two".