125556462051 has 4 divisors (see below), whose sum is σ = 167408616072. Its totient is φ = 83704308032.

The previous prime is 125556462049. The next prime is 125556462113. The reversal of 125556462051 is 150264655521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125556462051 - 2¹ = 125556462049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125556461994 and 125556462012.

It is not an unprimeable number, because it can be changed into a prime (125556462151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20926077006 + ... + 20926077011.

It is an arithmetic number, because the mean of its divisors is an integer number (41852154018).

Almost surely, 2^125556462051 is an apocalyptic number.

125556462051 is a deficient number, since it is larger than the sum of its proper divisors (41852154021).

125556462051 is an equidigital number, since it uses as much as digits as its factorization.

125556462051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41852154020.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 125556462051 in words is "one hundred twenty-five billion, five hundred fifty-six million, four hundred sixty-two thousand, fifty-one".