61612265 has 16 divisors (see below), whose sum is σ = 86861376. Its totient is φ = 41361600.

The previous prime is 61612261. The next prime is 61612277. The reversal of 61612265 is 56221616.

It is not a de Polignac number, because 61612265 - 2² = 61612261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61612261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42371 + ... + 43800.

It is an arithmetic number, because the mean of its divisors is an integer number (5428836).

Almost surely, 2^61612265 is an apocalyptic number.

61612265 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61612265 is a deficient number, since it is larger than the sum of its proper divisors (25249111).

61612265 is a wasteful number, since it uses less digits than its factorization.

61612265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86200.

The product of its digits is 4320, while the sum is 29.

The square root of 61612265 is about 7849.3480621004. The cubic root of 61612265 is about 394.9623742401.

The spelling of 61612265 in words is "sixty-one million, six hundred twelve thousand, two hundred sixty-five".