51542322 has 16 divisors (see below), whose sum is σ = 111014400. Its totient is φ = 15859152.

The previous prime is 51542321. The next prime is 51542347. The reversal of 51542322 is 22324515.

It is a super-2 number, since 2×51542322² = 5313221914303368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51542292 and 51542301.

It is not an unprimeable number, because it can be changed into a prime (51542321) 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, 330322 + ... + 330477.

It is an arithmetic number, because the mean of its divisors is an integer number (6938400).

Almost surely, 2^51542322 is an apocalyptic number.

51542322 is an abundant number, since it is smaller than the sum of its proper divisors (59472078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51542322 is a wasteful number, since it uses less digits than its factorization.

51542322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660817.

The product of its digits is 2400, while the sum is 24.

The square root of 51542322 is about 7179.2981551124. The cubic root of 51542322 is about 372.1528306013.

Adding to 51542322 its reverse (22324515), we get a palindrome (73866837).

The spelling of 51542322 in words is "fifty-one million, five hundred forty-two thousand, three hundred twenty-two".