51477120 has 192 divisors, whose sum is σ = 184897440. Its totient is φ = 13685760.

The previous prime is 51477113. The next prime is 51477131. The reversal of 51477120 is 2177415.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155355 + ... + 155685.

Almost surely, 2^51477120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51477120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92448720).

51477120 is an abundant number, since it is smaller than the sum of its proper divisors (133420320).

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

51477120 is an equidigital number, since it uses as much as digits as its factorization.

51477120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 51477120 is about 7174.7557449714. The cubic root of 51477120 is about 371.9958376225.

The spelling of 51477120 in words is "fifty-one million, four hundred seventy-seven thousand, one hundred twenty".