51401297 has 8 divisors (see below), whose sum is σ = 54884544. Its totient is φ = 48022128.

The previous prime is 51401279. The next prime is 51401299. The reversal of 51401297 is 79210415.

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 51401297 - 2¹⁰ = 51400273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51401299) 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, 24998 + ... + 26975.

It is an arithmetic number, because the mean of its divisors is an integer number (6860568).

Almost surely, 2^51401297 is an apocalyptic number.

It is an amenable number.

51401297 is a deficient number, since it is larger than the sum of its proper divisors (3483247).

51401297 is a wasteful number, since it uses less digits than its factorization.

51401297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52039.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 51401297 is about 7169.4697851375. The cubic root of 51401297 is about 371.8131046576.

The spelling of 51401297 in words is "fifty-one million, four hundred one thousand, two hundred ninety-seven".