61557327 has 40 divisors (see below), whose sum is σ = 100989504. Its totient is φ = 37132992.

The previous prime is 61557319. The next prime is 61557329. The reversal of 61557327 is 72375516.

61557327 is a `hidden beast` number, since 61 + 5 + 573 + 27 = 666.

It is not a de Polignac number, because 61557327 - 2³ = 61557319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61557291 and 61557300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61557329) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55258 + ... + 56360.

Almost surely, 2^61557327 is an apocalyptic number.

61557327 is a deficient number, since it is larger than the sum of its proper divisors (39432177).

61557327 is a wasteful number, since it uses less digits than its factorization.

61557327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1172 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 61557327 is about 7845.8477553417. The cubic root of 61557327 is about 394.8449468880.

The spelling of 61557327 in words is "sixty-one million, five hundred fifty-seven thousand, three hundred twenty-seven".