51070272 has 56 divisors (see below), whose sum is σ = 147413472. Its totient is φ = 15475200.

The previous prime is 51070267. The next prime is 51070273. The reversal of 51070272 is 27207015.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51070273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9979 + ... + 14202.

Almost surely, 2^51070272 is an apocalyptic number.

It is an amenable number.

51070272 is an abundant number, since it is smaller than the sum of its proper divisors (96343200).

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

51070272 is a wasteful number, since it uses less digits than its factorization.

51070272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24207 (or 24197 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 51070272 is about 7146.3467590091. The cubic root of 51070272 is about 371.0132247546.

Adding to 51070272 its reverse (27207015), we get a palindrome (78277287).

The spelling of 51070272 in words is "fifty-one million, seventy thousand, two hundred seventy-two".