54900661 has 2 divisors, whose sum is σ = 54900662. Its totient is φ = 54900660.

The previous prime is 54900649. The next prime is 54900697. The reversal of 54900661 is 16600945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 2047761 = 7270^2 + 1431^2 .

It is a cyclic number.

It is not a de Polignac number, because 54900661 - 2¹³ = 54892469 is a prime.

It is equal to p_3276571 and since 54900661 and 3276571 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54900611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27450330 + 27450331.

It is an arithmetic number, because the mean of its divisors is an integer number (27450331).

Almost surely, 2^54900661 is an apocalyptic number.

It is an amenable number.

54900661 is a deficient number, since it is larger than the sum of its proper divisors (1).

54900661 is an equidigital number, since it uses as much as digits as its factorization.

54900661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 54900661 is about 7409.4980261823. The cubic root of 54900661 is about 380.0661496106.

The spelling of 54900661 in words is "fifty-four million, nine hundred thousand, six hundred sixty-one".