36612551 has 2 divisors, whose sum is σ = 36612552. Its totient is φ = 36612550.

The previous prime is 36612547. The next prime is 36612593. The reversal of 36612551 is 15521663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36612551 - 2² = 36612547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36611551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18306275 + 18306276.

It is an arithmetic number, because the mean of its divisors is an integer number (18306276).

Almost surely, 2^36612551 is an apocalyptic number.

36612551 is a deficient number, since it is larger than the sum of its proper divisors (1).

36612551 is an equidigital number, since it uses as much as digits as its factorization.

36612551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 36612551 is about 6050.8306041402. The cubic root of 36612551 is about 332.0549789194.

The spelling of 36612551 in words is "thirty-six million, six hundred twelve thousand, five hundred fifty-one".