125506886377 has 2 divisors, whose sum is σ = 125506886378. Its totient is φ = 125506886376.

The previous prime is 125506886371. The next prime is 125506886429. The reversal of 125506886377 is 773688605521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117141223081 + 8365663296 = 342259^2 + 91464^2 .

It is a cyclic number.

It is not a de Polignac number, because 125506886377 - 2¹⁵ = 125506853609 is a prime.

It is a super-2 number, since 2×125506886377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125506886371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62753443188 + 62753443189.

It is an arithmetic number, because the mean of its divisors is an integer number (62753443189).

Almost surely, 2^125506886377 is an apocalyptic number.

It is an amenable number.

125506886377 is a deficient number, since it is larger than the sum of its proper divisors (1).

125506886377 is an equidigital number, since it uses as much as digits as its factorization.

125506886377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 125506886377 in words is "one hundred twenty-five billion, five hundred six million, eight hundred eighty-six thousand, three hundred seventy-seven".