61544049 has 12 divisors (see below), whose sum is σ = 95456304. Its totient is φ = 35167944.

The previous prime is 61544027. The next prime is 61544053. The reversal of 61544049 is 94044516.

It is not a de Polignac number, because 61544049 - 2¹² = 61539953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61544089) 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, 209187 + ... + 209480.

It is an arithmetic number, because the mean of its divisors is an integer number (7954692).

Almost surely, 2^61544049 is an apocalyptic number.

It is an amenable number.

61544049 is a deficient number, since it is larger than the sum of its proper divisors (33912255).

61544049 is a wasteful number, since it uses less digits than its factorization.

61544049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418684 (or 418677 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61544049 is about 7845.0015296366. The cubic root of 61544049 is about 394.8165553140.

The spelling of 61544049 in words is "sixty-one million, five hundred forty-four thousand, forty-nine".