55463531 has 2 divisors, whose sum is σ = 55463532. Its totient is φ = 55463530.

The previous prime is 55463519. The next prime is 55463549. The reversal of 55463531 is 13536455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55463531 - 2¹⁸ = 55201387 is a prime.

It is a super-2 number, since 2×55463531² = 6152406541975922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55463501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27731765 + 27731766.

It is an arithmetic number, because the mean of its divisors is an integer number (27731766).

Almost surely, 2^55463531 is an apocalyptic number.

55463531 is a deficient number, since it is larger than the sum of its proper divisors (1).

55463531 is an equidigital number, since it uses as much as digits as its factorization.

55463531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 32.

The square root of 55463531 is about 7447.3841716404. The cubic root of 55463531 is about 381.3606141100.

Adding to 55463531 its reverse (13536455), we get a palindrome (68999986).

The spelling of 55463531 in words is "fifty-five million, four hundred sixty-three thousand, five hundred thirty-one".