61053445 has 4 divisors (see below), whose sum is σ = 73264140. Its totient is φ = 48842752.

The previous prime is 61053437. The next prime is 61053463. The reversal of 61053445 is 54435016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17189316 + 43864129 = 4146^2 + 6623^2 .

It is a cyclic number.

It is not a de Polignac number, because 61053445 - 2³ = 61053437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105340 + ... + 6105349.

It is an arithmetic number, because the mean of its divisors is an integer number (18316035).

Almost surely, 2^61053445 is an apocalyptic number.

It is an amenable number.

61053445 is a deficient number, since it is larger than the sum of its proper divisors (12210695).

61053445 is a wasteful number, since it uses less digits than its factorization.

61053445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12210694.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 61053445 is about 7813.6703923316. The cubic root of 61053445 is about 393.7646498287.

The spelling of 61053445 in words is "sixty-one million, fifty-three thousand, four hundred forty-five".