54956129 has 2 divisors, whose sum is σ = 54956130. Its totient is φ = 54956128.

The previous prime is 54956101. The next prime is 54956141. The reversal of 54956129 is 92165945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 565504 = 7375^2 + 752^2 .

It is a cyclic number.

It is not a de Polignac number, because 54956129 - 2¹⁶ = 54890593 is a prime.

It is a super-2 number, since 2×54956129² = 6040352229329282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54956159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27478064 + 27478065.

It is an arithmetic number, because the mean of its divisors is an integer number (27478065).

Almost surely, 2^54956129 is an apocalyptic number.

It is an amenable number.

54956129 is a deficient number, since it is larger than the sum of its proper divisors (1).

54956129 is an equidigital number, since it uses as much as digits as its factorization.

54956129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 41.

The square root of 54956129 is about 7413.2401148216. The cubic root of 54956129 is about 380.1941044355.

The spelling of 54956129 in words is "fifty-four million, nine hundred fifty-six thousand, one hundred twenty-nine".