811525034 has 4 divisors (see below), whose sum is σ = 1217287554. Its totient is φ = 405762516.

The previous prime is 811524997. The next prime is 811525061. The reversal of 811525034 is 430525118.

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

It can be written as a sum of positive squares in only one way, i.e., 801059809 + 10465225 = 28303^2 + 3235^2 .

It is a junction number, because it is equal to n+sod(n) for n = 811524988 and 811525006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202881257 + ... + 202881260.

Almost surely, 2^811525034 is an apocalyptic number.

811525034 is a deficient number, since it is larger than the sum of its proper divisors (405762520).

811525034 is a wasteful number, since it uses less digits than its factorization.

811525034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405762519.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 811525034 is about 28487.2784589894. The cubic root of 811525034 is about 932.7544017149.

The spelling of 811525034 in words is "eight hundred eleven million, five hundred twenty-five thousand, thirty-four".