51340959 has 20 divisors (see below), whose sum is σ = 77144760. Its totient is φ = 34026480.

The previous prime is 51340957. The next prime is 51340981. The reversal of 51340959 is 95904315.

It is not a de Polignac number, because 51340959 - 2¹ = 51340957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340951) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12729 + ... + 16269.

It is an arithmetic number, because the mean of its divisors is an integer number (3857238).

Almost surely, 2^51340959 is an apocalyptic number.

51340959 is a deficient number, since it is larger than the sum of its proper divisors (25803801).

51340959 is a wasteful number, since it uses less digits than its factorization.

51340959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3723 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 51340959 is about 7165.2605674881. The cubic root of 51340959 is about 371.6675620062.

It can be divided in two parts, 5 and 1340959, that added together give a square (1340964 = 1158²).

The spelling of 51340959 in words is "fifty-one million, three hundred forty thousand, nine hundred fifty-nine".