51141442 has 32 divisors (see below), whose sum is σ = 87868800. Its totient is φ = 22108800.

The previous prime is 51141439. The next prime is 51141463. The reversal of 51141442 is 24414115.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a pancake number, because a pancake can be divided into 51141442 parts by 10113 straight cuts.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44734 + ... + 45862.

It is an arithmetic number, because the mean of its divisors is an integer number (2745900).

Almost surely, 2^51141442 is an apocalyptic number.

51141442 is a deficient number, since it is larger than the sum of its proper divisors (36727358).

51141442 is a wasteful number, since it uses less digits than its factorization.

51141442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 640, while the sum is 22.

The square root of 51141442 is about 7151.3244927076. The cubic root of 51141442 is about 371.1854890610.

Adding to 51141442 its reverse (24414115), we get a palindrome (75555557).

It can be divided in two parts, 5114 and 1442, that added together give a palindrome (6556).

The spelling of 51141442 in words is "fifty-one million, one hundred forty-one thousand, four hundred forty-two".