1055331011500 has 48 divisors (see below), whose sum is σ = 2308014072000. Its totient is φ = 421551609600.

The previous prime is 1055331011489. The next prime is 1055331011533. The reversal of 1055331011500 is 51101335501.

It is a happy number.

It is a super-2 number, since 2×1055331011500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088125 + ... + 1815124.

It is an arithmetic number, because the mean of its divisors is an integer number (48083626500).

Almost surely, 2^{1055331011500} is an apocalyptic number.

1055331011500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055331011500 is an abundant number, since it is smaller than the sum of its proper divisors (1252683060500).

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

1055331011500 is a wasteful number, since it uses less digits than its factorization.

1055331011500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903995 (or 2903983 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 25.

The spelling of 1055331011500 in words is "one trillion, fifty-five billion, three hundred thirty-one million, eleven thousand, five hundred".