61612567 has 8 divisors (see below), whose sum is σ = 62175600. Its totient is φ = 61052544.

The previous prime is 61612547. The next prime is 61612591. The reversal of 61612567 is 76521616.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61612567 is a prime.

It is a super-2 number, since 2×61612567² = 7592216824658978, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (61612547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60559 + ... + 61567.

It is an arithmetic number, because the mean of its divisors is an integer number (7771950).

Almost surely, 2^61612567 is an apocalyptic number.

61612567 is a deficient number, since it is larger than the sum of its proper divisors (563033).

61612567 is a wasteful number, since it uses less digits than its factorization.

61612567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505.

The product of its digits is 15120, while the sum is 34.

The square root of 61612567 is about 7849.3672993433. The cubic root of 61612567 is about 394.9630195578.

The spelling of 61612567 in words is "sixty-one million, six hundred twelve thousand, five hundred sixty-seven".