51357842 has 8 divisors (see below), whose sum is σ = 77376816. Its totient is φ = 25565572.

The previous prime is 51357841. The next prime is 51357853. The reversal of 51357842 is 24875315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51357841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56108 + ... + 57015.

It is an arithmetic number, because the mean of its divisors is an integer number (9672102).

Almost surely, 2^51357842 is an apocalyptic number.

51357842 is a deficient number, since it is larger than the sum of its proper divisors (26018974).

51357842 is a wasteful number, since it uses less digits than its factorization.

51357842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113352.

The product of its digits is 33600, while the sum is 35.

The square root of 51357842 is about 7166.4385855179. The cubic root of 51357842 is about 371.7082973559.

The spelling of 51357842 in words is "fifty-one million, three hundred fifty-seven thousand, eight hundred forty-two".