54320402345 has 48 divisors (see below), whose sum is σ = 76304728080. Its totient is φ = 36965744640.

The previous prime is 54320402273. The next prime is 54320402359.

54320402345 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 122699929 + 54197702416 = 11077^2 + 232804^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54320402345 is a prime.

It is a super-2 number, since 2×54320402345² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1764041 + ... + 1794569.

It is an arithmetic number, because the mean of its divisors is an integer number (1589681835).

Almost surely, 2^54320402345 is an apocalyptic number.

54320402345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54320402345 is a deficient number, since it is larger than the sum of its proper divisors (21984325735).

54320402345 is a wasteful number, since it uses less digits than its factorization.

54320402345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30746 (or 30735 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 54320402345 in words is "fifty-four billion, three hundred twenty million, four hundred two thousand, three hundred forty-five".