30731007055 has 16 divisors (see below), whose sum is σ = 42187199040. Its totient is φ = 21051781632.

The previous prime is 30731007023. The next prime is 30731007059. The reversal of 30731007055 is 55070013703.

It is a happy number.

It is not a de Polignac number, because 30731007055 - 2⁵ = 30731007023 is a prime.

It is a super-2 number, since 2×30731007055² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30731007059) 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, 399784 + ... + 470413.

It is an arithmetic number, because the mean of its divisors is an integer number (2636699940).

Almost surely, 2^30731007055 is an apocalyptic number.

30731007055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30731007055 is a deficient number, since it is larger than the sum of its proper divisors (11456191985).

30731007055 is a wasteful number, since it uses less digits than its factorization.

30731007055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871218.

The product of its (nonzero) digits is 11025, while the sum is 31.

The spelling of 30731007055 in words is "thirty billion, seven hundred thirty-one million, seven thousand, fifty-five".