61252565 has 32 divisors (see below), whose sum is σ = 85784832. Its totient is φ = 41536000.

The previous prime is 61252537. The next prime is 61252573. The reversal of 61252565 is 56525216.

It is not a de Polignac number, because 61252565 - 2¹⁴ = 61236181 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 31 ways as a sum of consecutive naturals, for example, 51275 + ... + 52455.

It is an arithmetic number, because the mean of its divisors is an integer number (2680776).

Almost surely, 2^61252565 is an apocalyptic number.

It is an amenable number.

61252565 is a deficient number, since it is larger than the sum of its proper divisors (24532267).

61252565 is a wasteful number, since it uses less digits than its factorization.

61252565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its digits is 18000, while the sum is 32.

The square root of 61252565 is about 7826.4017913726. The cubic root of 61252565 is about 394.1922606038.

The spelling of 61252565 in words is "sixty-one million, two hundred fifty-two thousand, five hundred sixty-five".