51125126577 has 16 divisors (see below), whose sum is σ = 77985549312. Its totient is φ = 29184135120.

The previous prime is 51125126567. The next prime is 51125126581. The reversal of 51125126577 is 77562152115.

It is not a de Polignac number, because 51125126577 - 2⁷ = 51125126449 is a prime.

It is a super-2 number, since 2×51125126577² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51125126567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1238499 + ... + 1279112.

It is an arithmetic number, because the mean of its divisors is an integer number (4874096832).

Almost surely, 2^51125126577 is an apocalyptic number.

It is an amenable number.

51125126577 is a deficient number, since it is larger than the sum of its proper divisors (26860422735).

51125126577 is a wasteful number, since it uses less digits than its factorization.

51125126577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518588.

The product of its digits is 147000, while the sum is 42.

The spelling of 51125126577 in words is "fifty-one billion, one hundred twenty-five million, one hundred twenty-six thousand, five hundred seventy-seven".