53977402 has 8 divisors (see below), whose sum is σ = 82941012. Its totient is φ = 26330400.

The previous prime is 53977393. The next prime is 53977403. The reversal of 53977402 is 20477935.

It can be written as a sum of positive squares in 2 ways, for example, as 38303721 + 15673681 = 6189^2 + 3959^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53977403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329049 + ... + 329212.

Almost surely, 2^53977402 is an apocalyptic number.

53977402 is a deficient number, since it is larger than the sum of its proper divisors (28963610).

53977402 is a wasteful number, since it uses less digits than its factorization.

53977402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658304.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 53977402 is about 7346.9314683070. The cubic root of 53977402 is about 377.9235822491.

The spelling of 53977402 in words is "fifty-three million, nine hundred seventy-seven thousand, four hundred two".