52661401 has 16 divisors (see below), whose sum is σ = 57796480. Its totient is φ = 47692800.

The previous prime is 52661387. The next prime is 52661417. The reversal of 52661401 is 10416625.

It is a cyclic number.

It is not a de Polignac number, because 52661401 - 2¹⁷ = 52530329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52664401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272761 + ... + 272953.

It is an arithmetic number, because the mean of its divisors is an integer number (3612280).

Almost surely, 2^52661401 is an apocalyptic number.

It is an amenable number.

52661401 is a deficient number, since it is larger than the sum of its proper divisors (5135079).

52661401 is a wasteful number, since it uses less digits than its factorization.

52661401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 52661401 is about 7256.8175531703. The cubic root of 52661401 is about 374.8269447432.

The spelling of 52661401 in words is "fifty-two million, six hundred sixty-one thousand, four hundred one".