1055521753381 has 16 divisors (see below), whose sum is σ = 1109541081600. Its totient is φ = 1002182349168.

The previous prime is 1055521753211. The next prime is 1055521753411. The reversal of 1055521753381 is 1833571255501.

It is not a de Polignac number, because 1055521753381 - 2¹⁹ = 1055521229093 is a prime.

It is a super-2 number, since 2×1055521753381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055521759381) 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, 19368990 + ... + 19423408.

It is an arithmetic number, because the mean of its divisors is an integer number (69346317600).

Almost surely, 2^{1055521753381} is an apocalyptic number.

It is an amenable number.

1055521753381 is a deficient number, since it is larger than the sum of its proper divisors (54019328219).

1055521753381 is a wasteful number, since it uses less digits than its factorization.

1055521753381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60648.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 1055521753381 in words is "one trillion, fifty-five billion, five hundred twenty-one million, seven hundred fifty-three thousand, three hundred eighty-one".