55513053031 has 4 divisors (see below), whose sum is σ = 55513533312. Its totient is φ = 55512572752.

The previous prime is 55513053017. The next prime is 55513053049. The reversal of 55513053031 is 13035031555.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55513053031 - 2⁵ = 55513052999 is a prime.

It is a super-2 number, since 2×55513053031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55513052984 and 55513053002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55513056031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50451 + ... + 337003.

It is an arithmetic number, because the mean of its divisors is an integer number (13878383328).

Almost surely, 2^55513053031 is an apocalyptic number.

55513053031 is a deficient number, since it is larger than the sum of its proper divisors (480281).

55513053031 is a wasteful number, since it uses less digits than its factorization.

55513053031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480280.

The product of its (nonzero) digits is 16875, while the sum is 31.

Adding to 55513053031 its reverse (13035031555), we get a palindrome (68548084586).

The spelling of 55513053031 in words is "fifty-five billion, five hundred thirteen million, fifty-three thousand, thirty-one".