61632445 has 12 divisors (see below), whose sum is σ = 86034204. Its totient is φ = 42262080.

The previous prime is 61632437. The next prime is 61632469. The reversal of 61632445 is 54423616.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 54331641 = 2702^2 + 7371^2 .

It is not a de Polignac number, because 61632445 - 2³ = 61632437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125536 + ... + 126025.

It is an arithmetic number, because the mean of its divisors is an integer number (7169517).

Almost surely, 2^61632445 is an apocalyptic number.

It is an amenable number.

61632445 is a deficient number, since it is larger than the sum of its proper divisors (24401759).

61632445 is a wasteful number, since it uses less digits than its factorization.

61632445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251580 (or 251573 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 61632445 is about 7850.6334139355. The cubic root of 61632445 is about 395.0054904968.

The spelling of 61632445 in words is "sixty-one million, six hundred thirty-two thousand, four hundred forty-five".