55550641 has 2 divisors, whose sum is σ = 55550642. Its totient is φ = 55550640.

The previous prime is 55550633. The next prime is 55550701. The reversal of 55550641 is 14605555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 5424241 = 7080^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 55550641 - 2³ = 55550633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55550041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775320 + 27775321.

It is an arithmetic number, because the mean of its divisors is an integer number (27775321).

Almost surely, 2^55550641 is an apocalyptic number.

It is an amenable number.

55550641 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550641 is an equidigital number, since it uses as much as digits as its factorization.

55550641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55550641 is about 7453.2302392989. The cubic root of 55550641 is about 381.5601623292.

The spelling of 55550641 in words is "fifty-five million, five hundred fifty thousand, six hundred forty-one".