51356601 has 12 divisors (see below), whose sum is σ = 78086320. Its totient is φ = 32435640.

The previous prime is 51356561. The next prime is 51356603. The reversal of 51356601 is 10665315.

It is a happy number.

51356601 is a `hidden beast` number, since 5 + 1 + 3 + 56 + 601 = 666.

It is not a de Polignac number, because 51356601 - 2⁶ = 51356537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51356603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149995 + ... + 150336.

Almost surely, 2^51356601 is an apocalyptic number.

It is an amenable number.

51356601 is a deficient number, since it is larger than the sum of its proper divisors (26729719).

51356601 is a wasteful number, since it uses less digits than its factorization.

51356601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300356 (or 300353 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51356601 is about 7166.3520008439. The cubic root of 51356601 is about 371.7053033716.

The spelling of 51356601 in words is "fifty-one million, three hundred fifty-six thousand, six hundred one".