75478011 has 32 divisors (see below), whose sum is σ = 122923008. Its totient is φ = 40212480.

The previous prime is 75478009. The next prime is 75478021. The reversal of 75478011 is 11087457.

It is not a de Polignac number, because 75478011 - 2¹ = 75478009 is a prime.

It is a super-2 number, since 2×75478011² = 11393860289032242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75478001) 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, 39406 + ... + 41276.

It is an arithmetic number, because the mean of its divisors is an integer number (3841344).

Almost surely, 2^75478011 is an apocalyptic number.

75478011 is a deficient number, since it is larger than the sum of its proper divisors (47444997).

75478011 is a wasteful number, since it uses less digits than its factorization.

75478011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 75478011 is about 8687.8081815841. The cubic root of 75478011 is about 422.6103694944.

The spelling of 75478011 in words is "seventy-five million, four hundred seventy-eight thousand, eleven".