53777916 has 36 divisors (see below), whose sum is σ = 136196424. Its totient is φ = 17892000.

The previous prime is 53777903. The next prime is 53777921. The reversal of 53777916 is 61977735.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×53777916³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24171 + ... + 26301.

It is an arithmetic number, because the mean of its divisors is an integer number (3783234).

Almost surely, 2^53777916 is an apocalyptic number.

It is an amenable number.

53777916 is an abundant number, since it is smaller than the sum of its proper divisors (82418508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53777916 is a wasteful number, since it uses less digits than its factorization.

53777916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842 (or 2837 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 53777916 is about 7333.3427575697. The cubic root of 53777916 is about 377.4574394659.

The spelling of 53777916 in words is "fifty-three million, seven hundred seventy-seven thousand, nine hundred sixteen".