70550421 has 8 divisors (see below), whose sum is σ = 94109280. Its totient is φ = 47012592.

The previous prime is 70550413. The next prime is 70550429. The reversal of 70550421 is 12405507.

It is an interprime number because it is at equal distance from previous prime (70550413) and next prime (70550429).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70550421 - 2³ = 70550413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70550391 and 70550400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70550429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (11763660).

Almost surely, 2^70550421 is an apocalyptic number.

It is an amenable number.

70550421 is a deficient number, since it is larger than the sum of its proper divisors (23558859).

70550421 is a wasteful number, since it uses less digits than its factorization.

70550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 70550421 is about 8399.4298020759. The cubic root of 70550421 is about 413.2059214612.

Adding to 70550421 its reverse (12405507), we get a palindrome (82955928).

The spelling of 70550421 in words is "seventy million, five hundred fifty thousand, four hundred twenty-one".