53955697 has 6 divisors (see below), whose sum is σ = 54233942. Its totient is φ = 53678592.

The previous prime is 53955691. The next prime is 53955743. The reversal of 53955697 is 79655935.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 314721 + 53640976 = 561^2 + 7324^2 .

It is not a de Polignac number, because 53955697 - 2¹¹ = 53953649 is a prime.

It is a super-2 number, since 2×53955697² = 5822434477511618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53955697.

It is not an unprimeable number, because it can be changed into a prime (53955691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124393 + ... + 124825.

Almost surely, 2^53955697 is an apocalyptic number.

It is an amenable number.

53955697 is a deficient number, since it is larger than the sum of its proper divisors (278245).

53955697 is an frugal number, since it uses more digits than its factorization.

53955697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 786 counting only the distinct ones).

The product of its digits is 1275750, while the sum is 49.

The square root of 53955697 is about 7345.4541724797. The cubic root of 53955697 is about 377.8729194978.

The spelling of 53955697 in words is "fifty-three million, nine hundred fifty-five thousand, six hundred ninety-seven".