1055025401055 has 32 divisors (see below), whose sum is σ = 1729660927680. Its totient is φ = 548813905920.

The previous prime is 1055025401051. The next prime is 1055025401069. The reversal of 1055025401055 is 5501045205501.

It is not a de Polignac number, because 1055025401055 - 2² = 1055025401051 is a prime.

It is a super-2 number, since 2×1055025401055² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055025401051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2171179 + ... + 2612291.

It is an arithmetic number, because the mean of its divisors is an integer number (54051903990).

Almost surely, 2^{1055025401055} is an apocalyptic number.

1055025401055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055025401055 is a deficient number, since it is larger than the sum of its proper divisors (674635526625).

1055025401055 is a wasteful number, since it uses less digits than its factorization.

1055025401055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445051.

The product of its (nonzero) digits is 25000, while the sum is 33.

The spelling of 1055025401055 in words is "one trillion, fifty-five billion, twenty-five million, four hundred one thousand, fifty-five".