61626001 has 4 divisors (see below), whose sum is σ = 61750000. Its totient is φ = 61502004.

The previous prime is 61625989. The next prime is 61626011. The reversal of 61626001 is 10062616.

61626001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61626001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61626011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61251 + ... + 62248.

It is an arithmetic number, because the mean of its divisors is an integer number (15437500).

Almost surely, 2^61626001 is an apocalyptic number.

It is an amenable number.

61626001 is a deficient number, since it is larger than the sum of its proper divisors (123999).

61626001 is a wasteful number, since it uses less digits than its factorization.

61626001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123998.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 61626001 is about 7850.2229904634. Note that the first 3 decimals coincide. The cubic root of 61626001 is about 394.9917233752.

Adding to 61626001 its reverse (10062616), we get a palindrome (71688617).

The spelling of 61626001 in words is "sixty-one million, six hundred twenty-six thousand, one".