51965545 has 8 divisors (see below), whose sum is σ = 62436096. Its totient is φ = 41520816.

The previous prime is 51965527. The next prime is 51965569. The reversal of 51965545 is 54556915.

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 51965545 - 2¹¹ = 51963497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51965498 and 51965507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707 + ... + 10336.

It is an arithmetic number, because the mean of its divisors is an integer number (7804512).

Almost surely, 2^51965545 is an apocalyptic number.

It is an amenable number.

51965545 is a deficient number, since it is larger than the sum of its proper divisors (10470551).

51965545 is a wasteful number, since it uses less digits than its factorization.

51965545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12911.

The product of its digits is 135000, while the sum is 40.

The square root of 51965545 is about 7208.7131306496. The cubic root of 51965545 is about 373.1686592160.

The spelling of 51965545 in words is "fifty-one million, nine hundred sixty-five thousand, five hundred forty-five".