61552449 has 12 divisors (see below), whose sum is σ = 101610496. Its totient is φ = 35172792.

The previous prime is 61552441. The next prime is 61552459. The reversal of 61552449 is 94425516.

61552449 is a `hidden beast` number, since 61 + 552 + 4 + 49 = 666.

It is not a de Polignac number, because 61552449 - 2³ = 61552441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61552441) 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, 488449 + ... + 488574.

Almost surely, 2^61552449 is an apocalyptic number.

It is an amenable number.

61552449 is a deficient number, since it is larger than the sum of its proper divisors (40058047).

61552449 is a wasteful number, since it uses less digits than its factorization.

61552449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977036 (or 977033 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 61552449 is about 7845.5368841144. The cubic root of 61552449 is about 394.8345170192.

It can be divided in two parts, 61552 and 449, that added together give a square (62001 = 249²).

The spelling of 61552449 in words is "sixty-one million, five hundred fifty-two thousand, four hundred forty-nine".