125553044051 has 4 divisors (see below), whose sum is σ = 126203578152. Its totient is φ = 124902509952.

The previous prime is 125553044041. The next prime is 125553044059. The reversal of 125553044051 is 150440355521.

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

It is not a de Polignac number, because 125553044051 - 2¹⁴ = 125553027667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125553044059) 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, 325266761 + ... + 325267146.

It is an arithmetic number, because the mean of its divisors is an integer number (31550894538).

Almost surely, 2^125553044051 is an apocalyptic number.

125553044051 is a deficient number, since it is larger than the sum of its proper divisors (650534101).

125553044051 is an equidigital number, since it uses as much as digits as its factorization.

125553044051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650534100.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 125553044051 its reverse (150440355521), we get a palindrome (275993399572).

The spelling of 125553044051 in words is "one hundred twenty-five billion, five hundred fifty-three million, forty-four thousand, fifty-one".