51227148 has 36 divisors (see below), whose sum is σ = 139046712. Its totient is φ = 14636160.

The previous prime is 51227123. The next prime is 51227149. The reversal of 51227148 is 84172215.

It is not an unprimeable number, because it can be changed into a prime (51227149) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 42973 + ... + 44148.

Almost surely, 2^51227148 is an apocalyptic number.

It is an amenable number.

51227148 is an abundant number, since it is smaller than the sum of its proper divisors (87819564).

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

51227148 is a wasteful number, since it uses less digits than its factorization.

51227148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87142 (or 87133 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 51227148 is about 7157.3143007695. The cubic root of 51227148 is about 371.3927252248.

The spelling of 51227148 in words is "fifty-one million, two hundred twenty-seven thousand, one hundred forty-eight".