61552667 has 8 divisors (see below), whose sum is σ = 67903920. Its totient is φ = 55327360.

The previous prime is 61552649. The next prime is 61552679. The reversal of 61552667 is 76625516.

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

It is not a de Polignac number, because 61552667 - 2⁸ = 61552411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61552667.

It is not an unprimeable number, because it can be changed into a prime (61552607) 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, 30458 + ... + 32415.

It is an arithmetic number, because the mean of its divisors is an integer number (8487990).

Almost surely, 2^61552667 is an apocalyptic number.

61552667 is a deficient number, since it is larger than the sum of its proper divisors (6351253).

61552667 is a wasteful number, since it uses less digits than its factorization.

61552667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62973.

The product of its digits is 75600, while the sum is 38.

The square root of 61552667 is about 7845.5507773515. The cubic root of 61552667 is about 394.8349831465.

The spelling of 61552667 in words is "sixty-one million, five hundred fifty-two thousand, six hundred sixty-seven".