51570152 has 8 divisors (see below), whose sum is σ = 96694050. Its totient is φ = 25785072.

The previous prime is 51570137. The next prime is 51570157. The reversal of 51570152 is 25107515.

It is a happy number.

51570152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30096196 + 21473956 = 5486^2 + 4634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (51570157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223127 + ... + 3223142.

Almost surely, 2^51570152 is an apocalyptic number.

It is an amenable number.

51570152 is a deficient number, since it is larger than the sum of its proper divisors (45123898).

51570152 is a wasteful number, since it uses less digits than its factorization.

51570152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446275 (or 6446271 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 51570152 is about 7181.2361052955. The cubic root of 51570152 is about 372.2197991905.

Adding to 51570152 its reverse (25107515), we get a palindrome (76677667).

The spelling of 51570152 in words is "fifty-one million, five hundred seventy thousand, one hundred fifty-two".