51477132 has 24 divisors (see below), whose sum is σ = 137272576. Its totient is φ = 14707728.

The previous prime is 51477131. The next prime is 51477133. The reversal of 51477132 is 23177415.

It is an interprime number because it is at equal distance from previous prime (51477131) and next prime (51477133).

It is a self number, because there is not a number n which added to its sum of digits gives 51477132.

It is not an unprimeable number, because it can be changed into a prime (51477131) 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, 306328 + ... + 306495.

Almost surely, 2^51477132 is an apocalyptic number.

It is an amenable number.

51477132 is an abundant number, since it is smaller than the sum of its proper divisors (85795444).

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

51477132 is a wasteful number, since it uses less digits than its factorization.

51477132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612837 (or 612835 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 51477132 is about 7174.7565812367. The cubic root of 51477132 is about 371.9958665282.

The spelling of 51477132 in words is "fifty-one million, four hundred seventy-seven thousand, one hundred thirty-two".