51167320 has 16 divisors (see below), whose sum is σ = 115126560. Its totient is φ = 20466912.

The previous prime is 51167299. The next prime is 51167327. The reversal of 51167320 is 2376115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639552 + ... + 639631.

It is an arithmetic number, because the mean of its divisors is an integer number (7195410).

Almost surely, 2^51167320 is an apocalyptic number.

It is an amenable number.

51167320 is an abundant number, since it is smaller than the sum of its proper divisors (63959240).

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

51167320 is a wasteful number, since it uses less digits than its factorization.

51167320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279194 (or 1279190 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 51167320 is about 7153.1335790687. The cubic root of 51167320 is about 371.2480861643.

The spelling of 51167320 in words is "fifty-one million, one hundred sixty-seven thousand, three hundred twenty".