52750402 has 4 divisors (see below), whose sum is σ = 79125606. Its totient is φ = 26375200.

The previous prime is 52750387. The next prime is 52750409. The reversal of 52750402 is 20405725.

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., 30481441 + 22268961 = 5521^2 + 4719^2 .

It is a super-2 number, since 2×52750402² = 5565209822323208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52750409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13187599 + ... + 13187602.

Almost surely, 2^52750402 is an apocalyptic number.

52750402 is a deficient number, since it is larger than the sum of its proper divisors (26375204).

52750402 is a wasteful number, since it uses less digits than its factorization.

52750402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26375203.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 52750402 is about 7262.9471979356. The cubic root of 52750402 is about 375.0379860780.

The spelling of 52750402 in words is "fifty-two million, seven hundred fifty thousand, four hundred two".