61859545 has 8 divisors (see below), whose sum is σ = 80979840. Its totient is φ = 44988720.

The previous prime is 61859537. The next prime is 61859557. The reversal of 61859545 is 54595816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61859545 - 2³ = 61859537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562305 + ... + 562414.

It is an arithmetic number, because the mean of its divisors is an integer number (10122480).

Almost surely, 2^61859545 is an apocalyptic number.

It is an amenable number.

61859545 is a deficient number, since it is larger than the sum of its proper divisors (19120295).

61859545 is a wasteful number, since it uses less digits than its factorization.

61859545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124735.

The product of its digits is 216000, while the sum is 43.

The square root of 61859545 is about 7865.0839156362. The cubic root of 61859545 is about 395.4900609795.

The spelling of 61859545 in words is "sixty-one million, eight hundred fifty-nine thousand, five hundred forty-five".