1055477625438 has 32 divisors (see below), whose sum is σ = 2208451392000. Its totient is φ = 335941672640.

The previous prime is 1055477625407. The next prime is 1055477625439. The reversal of 1055477625438 is 8345267745501.

It is a happy number.

It is a super-2 number, since 2×1055477625438² (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 (1055477625439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45632688 + ... + 45655811.

It is an arithmetic number, because the mean of its divisors is an integer number (69014106000).

Almost surely, 2^{1055477625438} is an apocalyptic number.

1055477625438 is an abundant number, since it is smaller than the sum of its proper divisors (1152973766562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055477625438 is a wasteful number, since it uses less digits than its factorization.

1055477625438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91288592.

The product of its (nonzero) digits is 28224000, while the sum is 57.

The spelling of 1055477625438 in words is "one trillion, fifty-five billion, four hundred seventy-seven million, six hundred twenty-five thousand, four hundred thirty-eight".