56121395 has 8 divisors (see below), whose sum is σ = 73468080. Its totient is φ = 40815520.

The previous prime is 56121391. The next prime is 56121413. The reversal of 56121395 is 59312165.

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

It is not a de Polignac number, because 56121395 - 2² = 56121391 is a prime.

It is a super-2 number, since 2×56121395² = 6299221953492050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56121391) 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, 510140 + ... + 510249.

It is an arithmetic number, because the mean of its divisors is an integer number (9183510).

Almost surely, 2^56121395 is an apocalyptic number.

56121395 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56121395 is a deficient number, since it is larger than the sum of its proper divisors (17346685).

56121395 is a wasteful number, since it uses less digits than its factorization.

56121395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020405.

The product of its digits is 8100, while the sum is 32.

The square root of 56121395 is about 7491.4214272059. The cubic root of 56121395 is about 382.8624897483.

It can be divided in two parts, 5612 and 1395, that added together give a palindrome (7007).

The spelling of 56121395 in words is "fifty-six million, one hundred twenty-one thousand, three hundred ninety-five".