2051251062531 has 32 divisors (see below), whose sum is σ = 2996532264960. Its totient is φ = 1237811248800.

The previous prime is 2051251062529. The next prime is 2051251062551. The reversal of 2051251062531 is 1352601521502.

It is not a de Polignac number, because 2051251062531 - 2¹ = 2051251062529 is a prime.

It is a super-2 number, since 2×2051251062531² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2051251062492 and 2051251062501.

It is not an unprimeable number, because it can be changed into a prime (2051251062521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80773846 + ... + 80799236.

It is an arithmetic number, because the mean of its divisors is an integer number (93641633280).

Almost surely, 2^{2051251062531} is an apocalyptic number.

2051251062531 is a deficient number, since it is larger than the sum of its proper divisors (945281202429).

2051251062531 is a wasteful number, since it uses less digits than its factorization.

2051251062531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35887.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 2051251062531 in words is "two trillion, fifty-one billion, two hundred fifty-one million, sixty-two thousand, five hundred thirty-one".