55179031 has 2 divisors, whose sum is σ = 55179032. Its totient is φ = 55179030.

The previous prime is 55179029. The next prime is 55179043. The reversal of 55179031 is 13097155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55179031 - 2¹ = 55179029 is a prime.

It is a super-2 number, since 2×55179031² = 6089450924197922, which contains 22 as substring.

Together with 55179029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 55178984 and 55179002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55179011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27589515 + 27589516.

It is an arithmetic number, because the mean of its divisors is an integer number (27589516).

Almost surely, 2^55179031 is an apocalyptic number.

55179031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55179031 is an equidigital number, since it uses as much as digits as its factorization.

55179031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 55179031 is about 7428.2589480981. The cubic root of 55179031 is about 380.7074333319.

The spelling of 55179031 in words is "fifty-five million, one hundred seventy-nine thousand, thirty-one".