51927480 has 320 divisors, whose sum is σ = 200724480. Its totient is φ = 11923200.

The previous prime is 51927467. The next prime is 51927497. The reversal of 51927480 is 8472915.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1104817 + ... + 1104863.

It is an arithmetic number, because the mean of its divisors is an integer number (627264).

Almost surely, 2^51927480 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 51927480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100362240).

51927480 is an abundant number, since it is smaller than the sum of its proper divisors (148797000).

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

51927480 is a wasteful number, since it uses less digits than its factorization.

51927480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51927480 is about 7206.0724392695. The cubic root of 51927480 is about 373.0775210414.

The spelling of 51927480 in words is "fifty-one million, nine hundred twenty-seven thousand, four hundred eighty".