125501265251 has 8 divisors (see below), whose sum is σ = 129720678000. Its totient is φ = 121351595040.

The previous prime is 125501265233. The next prime is 125501265277. The reversal of 125501265251 is 152562105521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125501265251 - 2¹⁴ = 125501248867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125501265221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17431976 + ... + 17439173.

It is an arithmetic number, because the mean of its divisors is an integer number (16215084750).

Almost surely, 2^125501265251 is an apocalyptic number.

125501265251 is a deficient number, since it is larger than the sum of its proper divisors (4219412749).

125501265251 is an equidigital number, since it uses as much as digits as its factorization.

125501265251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34871269.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 125501265251 in words is "one hundred twenty-five billion, five hundred one million, two hundred sixty-five thousand, two hundred fifty-one".