61550601 has 16 divisors (see below), whose sum is σ = 93993984. Its totient is φ = 35095824.

The previous prime is 61550579. The next prime is 61550603. The reversal of 61550601 is 10605516.

It is not a de Polignac number, because 61550601 - 2⁵ = 61550569 is a prime.

It is a super-2 number, since 2×61550601² = 7576952966922402, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61550603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7650 + ... + 13476.

It is an arithmetic number, because the mean of its divisors is an integer number (5874624).

Almost surely, 2^61550601 is an apocalyptic number.

It is an amenable number.

61550601 is a deficient number, since it is larger than the sum of its proper divisors (32443383).

61550601 is a wasteful number, since it uses less digits than its factorization.

61550601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 61550601 is about 7845.4191092637. The cubic root of 61550601 is about 394.8305655843.

The spelling of 61550601 in words is "sixty-one million, five hundred fifty thousand, six hundred one".