70552819 has 4 divisors (see below), whose sum is σ = 70584696. Its totient is φ = 70520944.

The previous prime is 70552789. The next prime is 70552861. The reversal of 70552819 is 91825507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91825507 = 71 ⋅1293317.

It is a cyclic number.

It is not a de Polignac number, because 70552819 - 2¹³ = 70544627 is a prime.

It is a super-2 number, since 2×70552819² = 9955400537693522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70552619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12349 + ... + 17134.

It is an arithmetic number, because the mean of its divisors is an integer number (17646174).

Almost surely, 2^70552819 is an apocalyptic number.

70552819 is a deficient number, since it is larger than the sum of its proper divisors (31877).

70552819 is a wasteful number, since it uses less digits than its factorization.

70552819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31876.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 70552819 is about 8399.5725486479. The cubic root of 70552819 is about 413.2106030141.

The spelling of 70552819 in words is "seventy million, five hundred fifty-two thousand, eight hundred nineteen".