511125056425 has 12 divisors (see below), whose sum is σ = 633849987676. Its totient is φ = 408864614400.

The previous prime is 511125056419. The next prime is 511125056471. The reversal of 511125056425 is 524650521115.

It can be written as a sum of positive squares in 6 ways, for example, as 75350799001 + 435774257424 = 274501^2 + 660132^2 .

It is not a de Polignac number, because 511125056425 - 2¹⁵ = 511125023657 is a prime.

It is a super-2 number, since 2×511125056425² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 589536 + ... + 1170385.

Almost surely, 2^511125056425 is an apocalyptic number.

It is an amenable number.

511125056425 is a deficient number, since it is larger than the sum of its proper divisors (122724931251).

511125056425 is a wasteful number, since it uses less digits than its factorization.

511125056425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771548 (or 1771543 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 511125056425 in words is "five hundred eleven billion, one hundred twenty-five million, fifty-six thousand, four hundred twenty-five".