51572242437 has 8 divisors (see below), whose sum is σ = 68772915936. Its totient is φ = 34376531952.

The previous prime is 51572242429. The next prime is 51572242459. The reversal of 51572242437 is 73424227515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51572242437 - 2³ = 51572242429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51572247437) 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, 1216438 + ... + 1258119.

It is an arithmetic number, because the mean of its divisors is an integer number (8596614492).

Almost surely, 2^51572242437 is an apocalyptic number.

It is an amenable number.

51572242437 is a deficient number, since it is larger than the sum of its proper divisors (17200673499).

51572242437 is a wasteful number, since it uses less digits than its factorization.

51572242437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481507.

The product of its digits is 470400, while the sum is 42.

The spelling of 51572242437 in words is "fifty-one billion, five hundred seventy-two million, two hundred forty-two thousand, four hundred thirty-seven".