52540739 has 8 divisors (see below), whose sum is σ = 53680320. Its totient is φ = 51409576.

The previous prime is 52540723. The next prime is 52540751. The reversal of 52540739 is 93704525.

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

It is a cyclic number.

It is not a de Polignac number, because 52540739 - 2⁴ = 52540723 is a prime.

It is a super-2 number, since 2×52540739² = 5521058509332242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52540699 and 52540708.

It is not an unprimeable number, because it can be changed into a prime (52540759) 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, 11432 + ... + 15354.

It is an arithmetic number, because the mean of its divisors is an integer number (6710040).

Almost surely, 2^52540739 is an apocalyptic number.

52540739 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

52540739 is a deficient number, since it is larger than the sum of its proper divisors (1139581).

52540739 is a wasteful number, since it uses less digits than its factorization.

52540739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 52540739 is about 7248.4990860177. The cubic root of 52540739 is about 374.5404480250.

The spelling of 52540739 in words is "fifty-two million, five hundred forty thousand, seven hundred thirty-nine".