51342252 has 48 divisors (see below), whose sum is σ = 129477600. Its totient is φ = 15740928.

The previous prime is 51342217. The next prime is 51342253. The reversal of 51342252 is 25224315.

Its product of digits (2400) is a multiple of the sum of its prime divisors (1200).

It is not an unprimeable number, because it can be changed into a prime (51342253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69678 + ... + 70410.

It is an arithmetic number, because the mean of its divisors is an integer number (2697450).

Almost surely, 2^51342252 is an apocalyptic number.

51342252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51342252 is an abundant number, since it is smaller than the sum of its proper divisors (78135348).

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

51342252 is a wasteful number, since it uses less digits than its factorization.

51342252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

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

The square root of 51342252 is about 7165.3507939249. The cubic root of 51342252 is about 371.6706820759.

Adding to 51342252 its reverse (25224315), we get a palindrome (76566567).

The spelling of 51342252 in words is "fifty-one million, three hundred forty-two thousand, two hundred fifty-two".