75050040 has 64 divisors (see below), whose sum is σ = 242474400. Its totient is φ = 18473472.

The previous prime is 75050033. The next prime is 75050047. The reversal of 75050040 is 4005057.

75050040 = T₁₄₈₇ + T₁₄₈₈ + ... + T₁₅₅₁.

It is an interprime number because it is at equal distance from previous prime (75050033) and next prime (75050047).

It is a junction number, because it is equal to n+sod(n) for n = 75049989 and 75050016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75050047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22495 + ... + 25614.

Almost surely, 2^75050040 is an apocalyptic number.

It is an amenable number.

75050040 is an abundant number, since it is smaller than the sum of its proper divisors (167424360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75050040 is a wasteful number, since it uses less digits than its factorization.

75050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48136 (or 48132 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 75050040 is about 8663.1426168568. The cubic root of 75050040 is about 421.8101015122.

Adding to 75050040 its reverse (4005057), we get a palindrome (79055097).

The spelling of 75050040 in words is "seventy-five million, fifty thousand, forty".