70525749 has 24 divisors (see below), whose sum is σ = 110789760. Its totient is φ = 39783744.

The previous prime is 70525747. The next prime is 70525753. The reversal of 70525749 is 94752507.

It is not a de Polignac number, because 70525749 - 2¹ = 70525747 is a prime.

It is a super-2 number, since 2×70525749² = 9947762544022002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70525747) 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 23 ways as a sum of consecutive naturals, for example, 8577 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (4616240).

Almost surely, 2^70525749 is an apocalyptic number.

70525749 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

70525749 is a deficient number, since it is larger than the sum of its proper divisors (40264011).

70525749 is a wasteful number, since it uses less digits than its factorization.

70525749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169 (or 6162 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 70525749 is about 8397.9610025291. The cubic root of 70525749 is about 413.1577487976.

The spelling of 70525749 in words is "seventy million, five hundred twenty-five thousand, seven hundred forty-nine".