53917642 has 16 divisors (see below), whose sum is σ = 87252552. Its totient is φ = 24893440.

The previous prime is 53917637. The next prime is 53917663. The reversal of 53917642 is 24671935.

It can be written as a sum of positive squares in 4 ways, for example, as 53714241 + 203401 = 7329^2 + 451^2 .

It is a super-2 number, since 2×53917642² = 5814224237680328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13159 + ... + 16762.

Almost surely, 2^53917642 is an apocalyptic number.

53917642 is a deficient number, since it is larger than the sum of its proper divisors (33334910).

53917642 is a wasteful number, since it uses less digits than its factorization.

53917642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29993.

The product of its digits is 45360, while the sum is 37.

The square root of 53917642 is about 7342.8633379629. The cubic root of 53917642 is about 377.7840605709.

It can be divided in two parts, 539 and 17642, that added together give a palindrome (18181).

The spelling of 53917642 in words is "fifty-three million, nine hundred seventeen thousand, six hundred forty-two".