54978736 has 10 divisors (see below), whose sum is σ = 106521332. Its totient is φ = 27489360.

The previous prime is 54978733. The next prime is 54978757. The reversal of 54978736 is 63787945.

It is a happy number.

It is a super-2 number, since 2×54978736² = 6045322824315392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54978736.

It is not an unprimeable number, because it can be changed into a prime (54978733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1718070 + ... + 1718101.

Almost surely, 2^54978736 is an apocalyptic number.

It is an amenable number.

54978736 is a deficient number, since it is larger than the sum of its proper divisors (51542596).

54978736 is a wasteful number, since it uses less digits than its factorization.

54978736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436179 (or 3436173 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 54978736 is about 7414.7647299156. The cubic root of 54978736 is about 380.2462300732.

The spelling of 54978736 in words is "fifty-four million, nine hundred seventy-eight thousand, seven hundred thirty-six".