11654551 has 2 divisors, whose sum is σ = 11654552. Its totient is φ = 11654550.

The previous prime is 11654527. The next prime is 11654557. The reversal of 11654551 is 15545611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11654551 - 2¹⁵ = 11621783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11654557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827275 + 5827276.

It is an arithmetic number, because the mean of its divisors is an integer number (5827276).

Almost surely, 2^11654551 is an apocalyptic number.

11654551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11654551 is an equidigital number, since it uses as much as digits as its factorization.

11654551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 28.

The square root of 11654551 is about 3413.8762426309. The cubic root of 11654551 is about 226.7245327558.

The spelling of 11654551 in words is "eleven million, six hundred fifty-four thousand, five hundred fifty-one".