761052521 has 4 divisors (see below), whose sum is σ = 771477972. Its totient is φ = 750627072.

The previous prime is 761052517. The next prime is 761052541. The reversal of 761052521 is 125250167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 297942121 + 463110400 = 17261^2 + 21520^2 .

It is a cyclic number.

It is not a de Polignac number, because 761052521 - 2² = 761052517 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761052541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5212616 + ... + 5212761.

It is an arithmetic number, because the mean of its divisors is an integer number (192869493).

Almost surely, 2^761052521 is an apocalyptic number.

It is an amenable number.

761052521 is a deficient number, since it is larger than the sum of its proper divisors (10425451).

761052521 is a wasteful number, since it uses less digits than its factorization.

761052521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10425450.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 761052521 is about 27587.1803742245. The cubic root of 761052521 is about 913.0016091421.

The spelling of 761052521 in words is "seven hundred sixty-one million, fifty-two thousand, five hundred twenty-one".