56121494 has 24 divisors (see below), whose sum is σ = 99654240. Its totient is φ = 23546160.

The previous prime is 56121491. The next prime is 56121503. The reversal of 56121494 is 49412165.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56121494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5774 + ... + 12065.

It is an arithmetic number, because the mean of its divisors is an integer number (4152260).

Almost surely, 2^56121494 is an apocalyptic number.

56121494 is a deficient number, since it is larger than the sum of its proper divisors (43532746).

56121494 is a wasteful number, since it uses less digits than its factorization.

56121494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17876 (or 17865 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 56121494 is about 7491.4280347608. The cubic root of 56121494 is about 382.8627148756.

The spelling of 56121494 in words is "fifty-six million, one hundred twenty-one thousand, four hundred ninety-four".