55140467 has 2 divisors, whose sum is σ = 55140468. Its totient is φ = 55140466.

The previous prime is 55140461. The next prime is 55140473. The reversal of 55140467 is 76404155.

It is a balanced prime because it is at equal distance from previous prime (55140461) and next prime (55140473).

It is a cyclic number.

It is not a de Polignac number, because 55140467 - 2⁶ = 55140403 is a prime.

It is a super-2 number, since 2×55140467² = 6080942201956178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55140461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27570233 + 27570234.

It is an arithmetic number, because the mean of its divisors is an integer number (27570234).

Almost surely, 2^55140467 is an apocalyptic number.

55140467 is a deficient number, since it is larger than the sum of its proper divisors (1).

55140467 is an equidigital number, since it uses as much as digits as its factorization.

55140467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55140467 is about 7425.6627313661. The cubic root of 55140467 is about 380.6187219573.

The spelling of 55140467 in words is "fifty-five million, one hundred forty thousand, four hundred sixty-seven".