61590551 has 8 divisors (see below), whose sum is σ = 67246608. Its totient is φ = 55944000.

The previous prime is 61590547. The next prime is 61590553. The reversal of 61590551 is 15509516.

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

It is a cyclic number.

It is not a de Polignac number, because 61590551 - 2² = 61590547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61590553) 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, 23171 + ... + 25691.

It is an arithmetic number, because the mean of its divisors is an integer number (8405826).

Almost surely, 2^61590551 is an apocalyptic number.

61590551 is a deficient number, since it is larger than the sum of its proper divisors (5656057).

61590551 is a wasteful number, since it uses less digits than its factorization.

61590551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 61590551 is about 7847.9647680147. The cubic root of 61590551 is about 394.9159699477.

The spelling of 61590551 in words is "sixty-one million, five hundred ninety thousand, five hundred fifty-one".