51222521501541 has 20 divisors (see below), whose sum is σ = 82403562607212. Its totient is φ = 31521551692608.

The previous prime is 51222521501443. The next prime is 51222521501551. The reversal of 51222521501541 is 14510512522215.

51222521501541 is a `hidden beast` number, since 5 + 1 + 22 + 25 + 21 + 50 + 1 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31597001296641 + 19625520204900 = 5621121^2 + 4430070^2 .

It is not a de Polignac number, because 51222521501541 - 2³⁵ = 51188161763173 is a prime.

It is a super-2 number, since 2×51222521501541² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51222521501496 and 51222521501505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222521501551) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24322183896 + ... + 24322186001.

Almost surely, 2^{51222521501541} is an apocalyptic number.

It is an amenable number.

51222521501541 is a deficient number, since it is larger than the sum of its proper divisors (31181041105671).

51222521501541 is a wasteful number, since it uses less digits than its factorization.

51222521501541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48644369922 (or 48644369913 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The spelling of 51222521501541 in words is "fifty-one trillion, two hundred twenty-two billion, five hundred twenty-one million, five hundred one thousand, five hundred forty-one".