51023253242 has 16 divisors (see below), whose sum is σ = 82639667040. Its totient is φ = 23487054192.

The previous prime is 51023253227. The next prime is 51023253247. The reversal of 51023253242 is 24235232015.

It is not an unprimeable number, because it can be changed into a prime (51023253247) 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, 2579108 + ... + 2598815.

It is an arithmetic number, because the mean of its divisors is an integer number (5164979190).

Almost surely, 2^51023253242 is an apocalyptic number.

51023253242 is a deficient number, since it is larger than the sum of its proper divisors (31616413798).

51023253242 is a wasteful number, since it uses less digits than its factorization.

51023253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178317.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 51023253242 its reverse (24235232015), we get a palindrome (75258485257).

The spelling of 51023253242 in words is "fifty-one billion, twenty-three million, two hundred fifty-three thousand, two hundred forty-two".