51725070 has 24 divisors (see below), whose sum is σ = 134485416. Its totient is φ = 13793328.

The previous prime is 51725059. The next prime is 51725111. The reversal of 51725070 is 7052715.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287272 + ... + 287451.

It is an arithmetic number, because the mean of its divisors is an integer number (5603559).

Almost surely, 2^51725070 is an apocalyptic number.

51725070 is an abundant number, since it is smaller than the sum of its proper divisors (82760346).

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

51725070 is a wasteful number, since it uses less digits than its factorization.

51725070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574736 (or 574733 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 51725070 is about 7192.0143214540. The cubic root of 51725070 is about 372.5921457249.

Adding to 51725070 its reverse (7052715), we get a palindrome (58777785).

The spelling of 51725070 in words is "fifty-one million, seven hundred twenty-five thousand, seventy".