126257055 has 8 divisors (see below), whose sum is σ = 202011312. Its totient is φ = 67337088.

The previous prime is 126257023. The next prime is 126257063. The reversal of 126257055 is 550752621.

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

It is not a de Polignac number, because 126257055 - 2⁵ = 126257023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208554 + ... + 4208583.

It is an arithmetic number, because the mean of its divisors is an integer number (25251414).

Almost surely, 2^126257055 is an apocalyptic number.

126257055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126257055 is a deficient number, since it is larger than the sum of its proper divisors (75754257).

126257055 is an equidigital number, since it uses as much as digits as its factorization.

126257055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417145.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 126257055 is about 11236.4164661159. The cubic root of 126257055 is about 501.6704860705.

The spelling of 126257055 in words is "one hundred twenty-six million, two hundred fifty-seven thousand, fifty-five".