53758690 has 16 divisors (see below), whose sum is σ = 98353080. Its totient is φ = 21150720.

The previous prime is 53758673. The next prime is 53758693. The reversal of 53758690 is 9685735.

It can be written as a sum of positive squares in 4 ways, for example, as 20223009 + 33535681 = 4497^2 + 5791^2 .

It is a super-2 number, since 2×53758690² = 5779993501032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53758693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43455 + ... + 44674.

Almost surely, 2^53758690 is an apocalyptic number.

53758690 is a deficient number, since it is larger than the sum of its proper divisors (44594390).

53758690 is a wasteful number, since it uses less digits than its factorization.

53758690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88197.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 53758690 is about 7332.0317784363. The cubic root of 53758690 is about 377.4124528354.

The spelling of 53758690 in words is "fifty-three million, seven hundred fifty-eight thousand, six hundred ninety".