51610397 has 8 divisors (see below), whose sum is σ = 52497792. Its totient is φ = 50727600.

The previous prime is 51610379. The next prime is 51610409. The reversal of 51610397 is 79301615.

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 51610397 - 2¹² = 51606301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51610337) 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, 27272 + ... + 29102.

It is an arithmetic number, because the mean of its divisors is an integer number (6562224).

Almost surely, 2^51610397 is an apocalyptic number.

It is an amenable number.

51610397 is a deficient number, since it is larger than the sum of its proper divisors (887395).

51610397 is a wasteful number, since it uses less digits than its factorization.

51610397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 51610397 is about 7184.0376530194. The cubic root of 51610397 is about 372.3165999572.

The spelling of 51610397 in words is "fifty-one million, six hundred ten thousand, three hundred ninety-seven".