55220313234131 has 32 divisors (see below), whose sum is σ = 56030997672000. Its totient is φ = 54418010572800.

The previous prime is 55220313234127. The next prime is 55220313234193. The reversal of 55220313234131 is 13143231302255.

It is a cyclic number.

It is not a de Polignac number, because 55220313234131 - 2² = 55220313234127 is a prime.

It is a super-2 number, since 2×55220313234131² (a number of 28 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 = 55220313234091 and 55220313234100.

It is not an unprimeable number, because it can be changed into a prime (55220313236131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8468071151 + ... + 8468077671.

It is an arithmetic number, because the mean of its divisors is an integer number (1750968677250).

Almost surely, 2^{55220313234131} is an apocalyptic number.

55220313234131 is a deficient number, since it is larger than the sum of its proper divisors (810684437869).

55220313234131 is a wasteful number, since it uses less digits than its factorization.

55220313234131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 55220313234131 its reverse (13143231302255), we get a palindrome (68363544536386).

The spelling of 55220313234131 in words is "fifty-five trillion, two hundred twenty billion, three hundred thirteen million, two hundred thirty-four thousand, one hundred thirty-one".