51940651 has 8 divisors (see below), whose sum is σ = 59405024. Its totient is φ = 44487360.

The previous prime is 51940639. The next prime is 51940657. The reversal of 51940651 is 15604915.

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 51940651 - 2⁵ = 51940619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51940657) 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, 14341 + ... + 17593.

It is an arithmetic number, because the mean of its divisors is an integer number (7425628).

Almost surely, 2^51940651 is an apocalyptic number.

51940651 is a deficient number, since it is larger than the sum of its proper divisors (7464373).

51940651 is a wasteful number, since it uses less digits than its factorization.

51940651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 51940651 is about 7206.9862633420. The cubic root of 51940651 is about 373.1090611086.

The spelling of 51940651 in words is "fifty-one million, nine hundred forty thousand, six hundred fifty-one".