56149405639 has 8 divisors (see below), whose sum is σ = 56330025440. Its totient is φ = 55968869376.

The previous prime is 56149405589. The next prime is 56149405649. The reversal of 56149405639 is 93650494165.

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 not a de Polignac number, because 56149405639 - 2³¹ = 54001921991 is a prime.

It is a super-2 number, since 2×56149405639² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56149405649) 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, 1502422 + ... + 1539340.

It is an arithmetic number, because the mean of its divisors is an integer number (7041253180).

Almost surely, 2^56149405639 is an apocalyptic number.

56149405639 is a deficient number, since it is larger than the sum of its proper divisors (180619801).

56149405639 is a wasteful number, since it uses less digits than its factorization.

56149405639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41769.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 56149405639 in words is "fifty-six billion, one hundred forty-nine million, four hundred five thousand, six hundred thirty-nine".