53926778 has 16 divisors (see below), whose sum is σ = 81768960. Its totient is φ = 26672400.

The previous prime is 53926777. The next prime is 53926819. The reversal of 53926778 is 87762935.

It is a super-2 number, since 2×53926778² = 5816194770922568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53926777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112343 + ... + 112821.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2^53926778 is an apocalyptic number.

53926778 is a deficient number, since it is larger than the sum of its proper divisors (27842182).

53926778 is a wasteful number, since it uses less digits than its factorization.

53926778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its digits is 635040, while the sum is 47.

The square root of 53926778 is about 7343.4854122549. The cubic root of 53926778 is about 377.8053970644.

The spelling of 53926778 in words is "fifty-three million, nine hundred twenty-six thousand, seven hundred seventy-eight".