537661955 has 8 divisors (see below), whose sum is σ = 645509904. Its totient is φ = 429919200.

The previous prime is 537661951. The next prime is 537661967. The reversal of 537661955 is 559166735.

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

It is not a de Polignac number, because 537661955 - 2² = 537661951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537661951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14576 + ... + 35885.

It is an arithmetic number, because the mean of its divisors is an integer number (80688738).

Almost surely, 2^537661955 is an apocalyptic number.

537661955 is a deficient number, since it is larger than the sum of its proper divisors (107847949).

537661955 is a wasteful number, since it uses less digits than its factorization.

537661955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52597.

The product of its digits is 850500, while the sum is 47.

The square root of 537661955 is about 23187.5387870296. The cubic root of 537661955 is about 813.1483197859.

The spelling of 537661955 in words is "five hundred thirty-seven million, six hundred sixty-one thousand, nine hundred fifty-five".