51445070 has 16 divisors (see below), whose sum is σ = 92683008. Its totient is φ = 20559840.

The previous prime is 51445067. The next prime is 51445091. The reversal of 51445070 is 7054415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19892 + ... + 22328.

It is an arithmetic number, because the mean of its divisors is an integer number (5792688).

Almost surely, 2^51445070 is an apocalyptic number.

51445070 is a deficient number, since it is larger than the sum of its proper divisors (41237938).

51445070 is a wasteful number, since it uses less digits than its factorization.

51445070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 51445070 is about 7172.5218716990. The cubic root of 51445070 is about 371.9186192273.

Adding to 51445070 its reverse (7054415), we get a palindrome (58499485).

The spelling of 51445070 in words is "fifty-one million, four hundred forty-five thousand, seventy".