53730537 has 32 divisors (see below), whose sum is σ = 86661120. Its totient is φ = 28926720.

The previous prime is 53730493. The next prime is 53730539. The reversal of 53730537 is 73503735.

It is not a de Polignac number, because 53730537 - 2¹¹ = 53728489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53730498 and 53730507.

It is not an unprimeable number, because it can be changed into a prime (53730539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123873 + ... + 124305.

It is an arithmetic number, because the mean of its divisors is an integer number (2708160).

Almost surely, 2^53730537 is an apocalyptic number.

53730537 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

53730537 is a deficient number, since it is larger than the sum of its proper divisors (32930583).

53730537 is a wasteful number, since it uses less digits than its factorization.

53730537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 33075, while the sum is 33.

The square root of 53730537 is about 7330.1116635424. Note that the first 3 decimals coincide. The cubic root of 53730537 is about 377.3465586942.

The spelling of 53730537 in words is "fifty-three million, seven hundred thirty thousand, five hundred thirty-seven".