70925545 has 4 divisors (see below), whose sum is σ = 85110660. Its totient is φ = 56740432.

The previous prime is 70925509. The next prime is 70925549. The reversal of 70925545 is 54552907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54552907 = 4021 ⋅13567.

It can be written as a sum of positive squares in 2 ways, for example, as 38787984 + 32137561 = 6228^2 + 5669^2 .

It is a cyclic number.

It is not a de Polignac number, because 70925545 - 2⁹ = 70925033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70925549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7092550 + ... + 7092559.

It is an arithmetic number, because the mean of its divisors is an integer number (21277665).

Almost surely, 2^70925545 is an apocalyptic number.

It is an amenable number.

70925545 is a deficient number, since it is larger than the sum of its proper divisors (14185115).

70925545 is a wasteful number, since it uses less digits than its factorization.

70925545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185114.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 70925545 is about 8421.7305228795. The cubic root of 70925545 is about 413.9369803801.

The spelling of 70925545 in words is "seventy million, nine hundred twenty-five thousand, five hundred forty-five".