51275760 has 40 divisors (see below), whose sum is σ = 158955600. Its totient is φ = 13673472.

The previous prime is 51275759. The next prime is 51275761. The reversal of 51275760 is 6757215.

It is an interprime number because it is at equal distance from previous prime (51275759) and next prime (51275761).

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51275761) 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, 106585 + ... + 107064.

It is an arithmetic number, because the mean of its divisors is an integer number (3973890).

Almost surely, 2^51275760 is an apocalyptic number.

It is an amenable number.

51275760 is an abundant number, since it is smaller than the sum of its proper divisors (107679840).

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

51275760 is a wasteful number, since it uses less digits than its factorization.

51275760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213665 (or 213659 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 51275760 is about 7160.7094620575. The cubic root of 51275760 is about 371.5101657880.

The spelling of 51275760 in words is "fifty-one million, two hundred seventy-five thousand, seven hundred sixty".