51623225037 has 6 divisors (see below), whose sum is σ = 74566880622. Its totient is φ = 34415483352.

The previous prime is 51623224993. The next prime is 51623225039. The reversal of 51623225037 is 73052232615.

51623225037 is a `hidden beast` number, since 5 + 1 + 623 + 2 + 25 + 0 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51522644196 + 100580841 = 226986^2 + 10029^2 .

It is not a de Polignac number, because 51623225037 - 2⁸ = 51623224781 is a prime.

It is a super-3 number, since 3×51623225037³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51623224992 and 51623225010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51623225039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2867956938 + ... + 2867956955.

It is an arithmetic number, because the mean of its divisors is an integer number (12427813437).

Almost surely, 2^51623225037 is an apocalyptic number.

It is an amenable number.

51623225037 is a deficient number, since it is larger than the sum of its proper divisors (22943655585).

51623225037 is a wasteful number, since it uses less digits than its factorization.

51623225037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735913899 (or 5735913896 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 51623225037 in words is "fifty-one billion, six hundred twenty-three million, two hundred twenty-five thousand, thirty-seven".