51474156 has 12 divisors (see below), whose sum is σ = 120106392. Its totient is φ = 17158048.

The previous prime is 51474151. The next prime is 51474197. The reversal of 51474156 is 65147415.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (51474151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144745 + ... + 2144768.

It is an arithmetic number, because the mean of its divisors is an integer number (10008866).

Almost surely, 2^51474156 is an apocalyptic number.

It is an amenable number.

51474156 is an abundant number, since it is smaller than the sum of its proper divisors (68632236).

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

51474156 is a wasteful number, since it uses less digits than its factorization.

51474156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289520 (or 4289518 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 51474156 is about 7174.5491844436. The cubic root of 51474156 is about 371.9886977720.

The spelling of 51474156 in words is "fifty-one million, four hundred seventy-four thousand, one hundred fifty-six".