51395148 has 240 divisors, whose sum is σ = 171730944. Its totient is φ = 13063680.

The previous prime is 51395129. The next prime is 51395173. The reversal of 51395148 is 84159315.

51395148 is a `hidden beast` number, since 5 + 139 + 514 + 8 = 666.

It is a super-2 number, since 2×51395148² = 5282922475883808, which contains 22 as substring.

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

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, 1195215 + ... + 1195257.

Almost surely, 2^51395148 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 51395148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85865472).

51395148 is an abundant number, since it is smaller than the sum of its proper divisors (120335796).

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

51395148 is a wasteful number, since it uses less digits than its factorization.

51395148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 103 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 51395148 is about 7169.0409400421. The cubic root of 51395148 is about 371.7982777298.

The spelling of 51395148 in words is "fifty-one million, three hundred ninety-five thousand, one hundred forty-eight".