61533801 has 12 divisors (see below), whose sum is σ = 101579712. Its totient is φ = 35162136.

The previous prime is 61533779. The next prime is 61533833. The reversal of 61533801 is 10833516.

It is not a de Polignac number, because 61533801 - 2⁷ = 61533673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61523801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 488301 + ... + 488426.

It is an arithmetic number, because the mean of its divisors is an integer number (8464976).

Almost surely, 2^61533801 is an apocalyptic number.

It is an amenable number.

61533801 is a deficient number, since it is larger than the sum of its proper divisors (40045911).

61533801 is a wasteful number, since it uses less digits than its factorization.

61533801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976740 (or 976737 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61533801 is about 7844.3483476959. The cubic root of 61533801 is about 394.7946398203.

The spelling of 61533801 in words is "sixty-one million, five hundred thirty-three thousand, eight hundred one".