51340535 has 8 divisors (see below), whose sum is σ = 62453040. Its totient is φ = 40509504.

The previous prime is 51340519. The next prime is 51340537. The reversal of 51340535 is 53504315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51340535 - 2⁴ = 51340519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340537) 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, 69965 + ... + 70694.

It is an arithmetic number, because the mean of its divisors is an integer number (7806630).

Almost surely, 2^51340535 is an apocalyptic number.

51340535 is a deficient number, since it is larger than the sum of its proper divisors (11112505).

51340535 is a wasteful number, since it uses less digits than its factorization.

51340535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140737.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 51340535 is about 7165.2309802267. The cubic root of 51340535 is about 371.6665388628. Note that the first 3 decimals are identical.

The spelling of 51340535 in words is "fifty-one million, three hundred forty thousand, five hundred thirty-five".