55912553 has 2 divisors, whose sum is σ = 55912554. Its totient is φ = 55912552.

The previous prime is 55912543. The next prime is 55912583. The reversal of 55912553 is 35521955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 6744409 = 7012^2 + 2597^2 .

It is a cyclic number.

It is not a de Polignac number, because 55912553 - 2¹⁶ = 55847017 is a prime.

It is not a weakly prime, because it can be changed into another prime (55912543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27956276 + 27956277.

It is an arithmetic number, because the mean of its divisors is an integer number (27956277).

Almost surely, 2^55912553 is an apocalyptic number.

It is an amenable number.

55912553 is a deficient number, since it is larger than the sum of its proper divisors (1).

55912553 is an equidigital number, since it uses as much as digits as its factorization.

55912553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33750, while the sum is 35.

The square root of 55912553 is about 7477.4696923491. The cubic root of 55912553 is about 382.3869898390.

It can be divided in two parts, 55912 and 553, that added together give a palindrome (56465).

The spelling of 55912553 in words is "fifty-five million, nine hundred twelve thousand, five hundred fifty-three".