70525387 has 2 divisors, whose sum is σ = 70525388. Its totient is φ = 70525386.

The previous prime is 70525381. The next prime is 70525391. The reversal of 70525387 is 78352507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70525387 - 2³ = 70525379 is a prime.

It is a super-2 number, since 2×70525387² = 9947660422999538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70525381) 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 as a sum of consecutive naturals, namely, 35262693 + 35262694.

It is an arithmetic number, because the mean of its divisors is an integer number (35262694).

Almost surely, 2^70525387 is an apocalyptic number.

70525387 is a deficient number, since it is larger than the sum of its proper divisors (1).

70525387 is an equidigital number, since it uses as much as digits as its factorization.

70525387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 70525387 is about 8397.9394496507. The cubic root of 70525387 is about 413.1570419004.

The spelling of 70525387 in words is "seventy million, five hundred twenty-five thousand, three hundred eighty-seven".