51901297 has 8 divisors (see below), whose sum is σ = 60321600. Its totient is φ = 43732464.

The previous prime is 51901277. The next prime is 51901309. The reversal of 51901297 is 79210915.

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 51901297 - 2⁷ = 51901169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51901277) 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, 62422 + ... + 63247.

It is an arithmetic number, because the mean of its divisors is an integer number (7540200).

Almost surely, 2^51901297 is an apocalyptic number.

It is an amenable number.

51901297 is a deficient number, since it is larger than the sum of its proper divisors (8420303).

51901297 is a wasteful number, since it uses less digits than its factorization.

51901297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125735.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 51901297 is about 7204.2554785349. The cubic root of 51901297 is about 373.0148058150.

The spelling of 51901297 in words is "fifty-one million, nine hundred one thousand, two hundred ninety-seven".